WordPressでGmailのSMTPサーバーを使ってメールを送信する方法

133件のコメント返信を残す

1. David

   Hi, I used this tutorial last year to install and configure the Gmail SMTP plugin. Until very recently, the Gmail SMTP plugin in conjunction with my website’s contact form worked perfectly. But I tested my website’s contact form today, and I got the following fatal-error message:

   Fatal error: Uncaught exception ‘Google_Auth_Exception’ with message ‘Error refreshing the OAuth2 token, message: ‘{ “error” : “invalid_grant” }”

   I don’t have a clue what that means. I get the same fatal-error message when I use the plugin to send a test message at Gmail SMTP plugin>Settings>Test email.

   I haven’t changed any of the plugin settings since I first installed it a year ago, and I haven’t done anything new with my Google Console account either. I’m using the most recent version of the Gmail SMTP plugin, and also the newest version of Wordpress.

   Any ideas or suggestions?

   Thanks!

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   • WPBeginner Support

     Hey David,

     It seems like your Oauth2 token has expired. Try following the tutorial again from the beginning to set it up again.

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     管理者

2. Ehsan

   Thank U very much – one of my problem was this “my emails goes to spam folder”
   with this service(Method 1) Now It’s great – of course after 14 days you must pay for that but still it’s prefect
   I have question;
   Can I send 100 Emails like newsletter for my customer is it OK for Google!?
   I afraid my Emails after it goes to spam folder again

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3. Sharon

   I did everything as described, but the contact form on my website still does not work.

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4. Adondriel

   Hey, add a thing at the end for the troubleshooting thing: “Check with your website host and verify that they do not block outgoing requests by default.” I know 1. GoDaddy does this, and won’t let you unblock. and 2. Namecheap also blocks by default but you just gotta contact support, give em your info and ask em to unblock port 587 and boom, it’ll all work again.

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5. Lucas

   You save my life!

   Tks!

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6. adam

   i keep getting a Error: redirect_uri_mismatch when i press ‘grant permission’. It’s driving me nuts as I can’t work out what is wrong? Everything seems to match.
   Adam

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   • Grzegorz

     Same here. i get redirect_uri_mismatch

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7. Macky

   This video has been a fantastic help.

   I’m a complete Wordpress beginner.The step-by step instructions are very easy to follow. Now my emails are working perfectly!! Plus I also learnt how to insert headers & footers with ease.

   Thanks once again!!

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   • WPBeginner Support

     Hi Macky,

     We are glad you found the video helpful. You may also want to subscribe to our YouTube Channel for WordPress video tutorials.

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     管理者

8. Fabio

   Your tutorial saved my site! Thank you very much mate!

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9. Maggie Z

   A follow-up question – because of the login conflict issue, I was also considering using WP Mail SMTP. However, many users on the support forum for that plugin express concern that the password for the email account is visible on the admin page in plain text.

   I have a firewall set up that prevents non-admins from getting in to the back end, so is there any real security concern regarding the password showing in plain text? Any advice much appreciated!!!

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   • Maggie Z

     After troubleshooting quite a bit, I finally relented and went with WP Mail SMTP, which requires the “allow less secure apps” solution – a tech support person at G Suite told me that it was safe, and it seems like the only way to go for my particular setup. Appears to be working now. Thanks for the incredibly clear instructions!!! I am now a firm fan of this site.

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10. Maggie Zellner

    The video is fantastic, and the plugin installed perfectly. Unfortunately I didn’t realize until after I went through the whole process (because I didn’t read the documentation on the plugin carefully), the Gmail SMTP plugin eliminates the need for users to log in, and therefore it interfered with the login process that we have instituted for paid members on our website (which we manage through a plugin called PaidMembershipsPro).

    Is there any way to disable that aspect of this plugin, so I can send all email via our Gmail account, but can still have users log in and out?

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11. Eric

    Great article! However, I am unclear on something when using Wordpress for sending newsletters. What is the difference between those mass emailing service providers (mailgun & Sendgrid) and using Google Apps for work SMTP?

    Can’t we use Google Apps for work to send newsletters just as well?

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    • WPBeginner Support

      with Google Apps for Work, you can only send an email to 500 recipients max (for paid business accounts). You cannot use it for newsletters.

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    • Eric

      Thanks so much for your response! With Google Apps for Work only limiting to 500 recipients, then I suppose it would work if we sent it to 500 or less people.

      My next question, is it max to send all at one time or per day? If we throttle it to only send out a few per minute, do you know if it would allow it to send thousands within a few hours?

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12. Heather

    Thank you so much! This was so helpful!

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13. zim ejin

    Hi, this was very informative thank you for posting. however i have a website hosted on aws ec2, and route53 for dns. i tried the secure configuration. it didn’t work. Is there a special configuration for self hosted websites on aws ec2/route53. btw : i don’t have a cpanel installed.

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14. Lanrz

    After granting access and clicking on the allow button, I was not being redirected back to wordpress and the SMTP status is still not connected.

    Any advice on how I should go about doing it?

    Thanks!

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15. Nathalie

    Doesn’t work: test email retuens Connection: opening to smtp.gmail.com:587, timeout=300, options=array ( ‘ssl’ => array ( ‘verify_peer’ => false, ‘verify_peer_name’ => false, ‘allow_self_signed’ => true, ),)
    I checked Email Routing -> Remote Mail Exchanger but it didn’t help

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16. Raph Divine

    Thanks for the write-up. It really helped me! 5stars!

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17. Real Name

    This guide worked wonderfully until my server stopped sending emails and I can’t get it to work again. The “Test Email” tab doesn’t make it clear if the email has successfully sent or not since it just spews out 52 lines that don’t mean much to me. :/

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18. Boro

    Amazing Tutorial !!!!
    Thank you

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19. peter

    Ok, so I have followed the OAuth instructions and my SMPT status button has gone green. However, whether through test email or my site, I can not send an email through the contact us form (pluggin contact form builder by web Durado). The hanging message say waiting for and eventually I get a 405 error notice.

    Any thoughts.

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20. Thomas

    Hoping you can help me?

    I tried setting up method 1 using gmail and I got the ‘green light’ from wordpress however when testing the email I receive the following error message after waiting 1 minute for it to send:

    Connection: opening to smtp.gmail.com:587, timeout=300, options=array ()

    Any ideas on how to fix this?

    Very best,

    Tom

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21. Fernando Santos

    This tutorial is awesome!

    I have one question, though. I directed the contact form messages to a gmail group email address, but, for some reason, the messages aren’t being delivered. When I direct to a “real” e-mail address like the messages are normally delivered.

    I would really appreciate if someone could give me a hand figuring out why this happens.

    Thank you!!!

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    • Paul

      +1 for this question. Have exactly the same question as wish to use our info@.. address

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22. Andres

    Thanks guys for such useful article. I followed all the steps and was able to configure the email correctly. However, when I receive the email from mydomain.com address (sent by wordpress after purchasing a product), the user avatar (gmail picture) doesn’t appear even though mydomain.com has a picture already.

    In fact, if I send an email directly from mydomain.com account via google for work, the receiver is able to see the image right away, but it’s not the case if the email is sent via wordpress.

    Do you have any suggestions? Thanks a lot, and keep rocking!

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23. Sahar

    Thanks for this helpful information. You really helped me out in setting this up, and I appreciate you taking the time to create this useful information!

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    • WPBeginner Support

      Glad you found it helpful.

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      管理者

24. lokesh kumar CL

    What is origin URI of the client application. its not accepting website URL ….please help me out

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25. Susan

    Excellent instructions and thanks for walking me through setting this up. I did try the MX record change but no luck there either.
    I get a 405 Not allowed message when I try to send an email.
    I am hosted by Bluehost and am using the DIVI theme.
    If anyone has any ideas I would be very grateful.

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    • Leista

      Hello, having a similar issue. Getting a 405 error, and also hosted on Bluehost. By any chance, were you able to fix the problem? Thanks.

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      • JDC

        I had the same problem with bluehost. But this gave me the solution.

        I uninstalled any extra plugin for mail, including smtp mailer or gmail smtp plugin and just used a random address like mynewaddress@example.com (replace example.com with your own domain name) and it worked. I sent an email to my gmail account I it passes all the filters. It seems that BlueHost validates the address if it is comming from the server that hosts that domain. In gmail you usually get a warning that says that this email might not have being validated, but my email are comming fine with custom wordpress email functions. No extra plugin needed.

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26. Prashant Bhandarkar

    Thank you so much. This was of great help. God Bless you!

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27. Karmen

    Awesome tutorial!!!

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28. Louise

    I have this working brilliantly with a Google apps for work account for a woocommerce solution on wordpress, thank you.

    Should this work if I use a Google group mail instead of an account?

    Thanks very much.

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29. Brian Treiber

    I am not using Google apps for work, I have everything set up and connected. I tried to send a test email however I get a 405 not allowed error. I went into my cpanel and changed the mx records to the recommended” remote.” Still can’t send. Does this mean I need to use the less secure method?

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30. Jason North

    I’m getting this error when I try to activate the plugin:

    Plugin could not be activated because it triggered a fatal error. Parse error: syntax error, unexpected T_FUNCTION, expecting ‘)’ in /home3/north23/public_html/forcebrain/wp-content/plugins/gmail-smtp/google-api-php-client/src/Google/autoload.php on line 19

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31. genie

    Hello, I use gmail-smtp plugin but it conflict with ultimate membership. Could you help me ?
    I try another wp mail smtp but in the last feld: user account pass. Google app not allow to login from plugin. Pls help
    Thank you

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32. Leslie Andrews

    Clearly I’m doing something wrong. When I get to “add credentials” I’m getting this error message and can’t move forward.

    Invalid Redirect: must end with a public top-level domain (such as .com or .org)

    Any help would be great

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    • WPBeginner Support

      If you look at the URL closely, you will notice that you are missing a . between domainname and the TLD, yours is examplecom when it should be example.com.

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      管理者

33. Graham

    Thanks for the tutorial, but I get this error when I try to send a test email:

    Connection: opening to ssl://smtp.gmail.com:587, timeout=300, options=array ()
    SMTP ERROR: Failed to connect to server: Connection refused (111)
    SMTP connect() failed.

    Does it have something to with my site being secured with SSL?

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    • Tony

      I’m having the same issue. Did you figure it out?

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34. Tom

    Nice Article, I’m having a few issues to get this working. So I Deactivated the Plugin and tested a Contact Form to see if all was the same before setting up Gmail SMTP, unfotunately No Emails are being sent through now.

    Even though the Gmail SMTP Plugin is NOT active, do we need to reset back to the default settings somehow?

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    • WPBeginner Support

      Nope simply deactivating it would turn it off.

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      管理者

35. Jenny

    Hi,

    I have this all set up properly and the test email worked…I just commented on my own blog to see if I would get an email when a comment was posted but I unfortunately didn’t. Can someone help me figure out where I went wrong?

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36. Sachin

    Hey thanks for the tutorial. Everything works fine in Setup, but when mail is being sent the site freezes for about 5 mins. site doesnt open at that time. It doesnt respond at that time. Any idea what might be causing this issue. But the point is mail is sent at last finally

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    • WPBeginner Support

      Please contact your WordPress hosting provider. They may be able to help you better.

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      管理者

37. crissy

    Hi,

    I’m having problem with the test email send

    Fatal error: Cannot redeclare class phpmailer in /home/mywebsite/wp-includes/class-phpmailer.php on line 29

    please help

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38. David

    Hi, I just installed this plugin, and everything went perfectly–thanks to your excellent tutorial! (I definitely couldn’t have done it without you.) My website’s outgoing email immediately started landing in people’s inboxes rather than in their spam folders.

    But since I’m a novice at these matters and don’t know SMTP from RSVP, I did some reading on SMTP, and on one website I came across made this statement:

    “Another strategy that hackers use: If your app sends email using SMTP, the IP address will be recorded in the Received header lines. Either scrub the original Received line [no explanation provided of how that’s done], or don’t use SMTP for email submission.”

    Is this something I should be concerned about security-wise? Or does this plugin solve this problem somehow? And if not, how should I fix it?

    Thanks!

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    • WPBeginner Support

      You shouldn’t be concerned about it. Most popular email service providers and their spam filters can check if an email is originating from the IP address it claims to be coming from.

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      管理者

39. Rob

    Thank YOU so much for this!! I’ll keep coming back for more!!

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40. Travis

    Thanks so much for this tutorial.

    Originally I had this all setup and working fine, but I moved my website and did some other fixes to it, and suddenly mailing stopped working.

    Previously I spent some time trying to set it up and get it to work, but then it “stopped” working randomly.

    Anyways, option #1 really saved me a major headache.

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41. Christine Tabor

    I configured, and got the green go to go button… THANKS FOR THE STEP BY STEP…
    (doing this on a client test site)…

    BUT REGARDING GRAVITY FORMS (or any form plug in)… do I also need to change up the notification emails that I’ve used for the Gravity Forms submissions?

    Is it ok for the “from” email I used in the configuration to be different than the gmail used to set i up?

    The issue that started all this was client not getting his Gravity Form notifications.

    SO, before I install on their live site… (which is ecommerce and SSL)… can you reply to this … and should I still use the TSL for the configuration? I wasn’t sure if a certificate on the site made any difference in configuring this.

    Thanks,
    Christine

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    • WPBeginner Support

      No you don’t need to change notification emails.

      It is OK, but to ensure maximum deliverability you should use the email address that is actually sending the email.

      You should try with SSL first for the Gmail Configuration.

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      管理者

      • Christine

        Thanks for reply…little bit more clarification please.

        I set up an email…info@domain.com as a forwarder in cpanel, and I forward to their Verizon email.

        I left the Verizon email in the GF notification list, added the info email, and another alternate email.

        So the info email is the one in Gmail plugin set up that is sending the email…is it ok that it’s a forwarder?

        Also, when I set up the plugin, I used a gmail I had created … CompanyName@gmail.com
        But not using it as the sending email or anywhere else.

        I sent a test and it appears all worked… Should I go back and change to SSL instead of the TSL or leave as is?

        Thanks again…
        Christine

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        • WPBeginner Support

          Sounds about right. However, if it was up to us we would use the Gmail address as the sender and add the forwarding email address as the Reply-to address.

42. Tribhuwan Bhatt

    Thank You

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43. Tim R

    Doesn’t work for me on April 14, 2016.

    Things I do rarely work.

    Connection: opening to smtp.gmail.com:587, timeout=300, options=array ()
    SMTP ERROR: Failed to connect to server: Network is unreachable (101)
    SMTP connect() failed.
    Mailer Error: SMTP connect() failed.
    Any point in fussing with this ?

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    • zse

      Hi,
      I have this same error.
      Did you solved this problem?

      Regards

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    • Tim R

      Here’s a follow up:

      Settings of my web host’s server made this impossible.

      Switched hosts and now it works easy as pie.

      Don’t forget to change settings on gmail account to allow for unregistered apps (a search will discover many instructions to do that so I won’t add it here)

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      • Monica

        Hey i tried allowing access for unregistered apps it still doesnt work for me.
        I am getting the error:
        Connection: opening to smtp.gmail.com:587, timeout=300, options=array ()
        SMTP ERROR: Failed to connect to server: Connection refused (111)
        SMTP connect() failed.
        Any ideas ?

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44. Bclose

    Hi ,
    Thanks for this ticket ..i was fighting with my emial provider weblayer and nothing. it worked with your magic touch , one simple note .. by the end of Ouauth when explaining to create a fake local email you forgot to include that we must use MX record and what is is , i search on google and found ALT2.ASPMX.L.GOOGLE.COM, but this last simply thing could be a danwfault for all readers
    Either way thank you..a lot!

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45. Kay

    Thank you soooooo much for this! Worked like a charm. The instructions are 100% on point!

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46. Tyler

    Anyone get this working with google apps email? I’ve created API credentials. SMTP status is green. But Test email says connection refused. Already set mx to remote on godaddy. Are there any security setting ls in google apps email that have to be configured?

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47. TJ

    Nice article, was able to install the plugin and it sent the email from the plugin test email.

    Fails when using Contact Form 7, any recommendations for a contact form plugin that this might work with?

    Thanks

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    • WPBeginner Support

      You can try it with WPForms.

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      管理者

48. Muhammad

    thanks for the nice post.i was thinking to set up this for my site.

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49. Ripul

    Interesting, however I am getting this error : “Error: redirect_uri_mismatch”

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    • Ripul

      I forgot to mention I am testing this on Localhost.

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50. Rashmirekha Moharana

    Hi Syed.

    Thanks a lot for such a wonderful solution. Let me implement and see.

    Kudos to you.

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