Hello,
I understand that you are experiencing an issue with the Gmail API, as this group is intended for general discussion regarding App Engine and not for specific technical issue’s troubleshooting I you would have better assistance from another channel. I would recommend taking a look at recommend that you post your question on StackOverflow as described in this article <https://developers.google.com/gmail/api/support>. This will allow you to have access to a large community of enthusiasts and experts to share ideas with and get support from. Please make sure to include all relevant details and error messages which would help the community troubleshoot. On Monday, December 17, 2018 at 6:18:55 PM UTC-5, S7 Mailer wrote: > > > Hi there, hope I'm in the right place. > > We use OAuth to log in to a Gmail account on websites to send email via > SMTP from forms. This was to get around PHPMail issues and to reduce spam. > We've had this set up for years and just today we've started to get this > error from all forms: > > Token has been expired or revoked.(invalid_grant) > > What is the reason behind this? We have about 50+ Client IDs on there, all > used to work fine. It's like they have unhooked themselves. > > Do we now need to verify every single domain? Is it because of a spam > issue? > > Pretty desperate to get this email service back up and running. Many > thanks for your time, looking forward to some ideas. > > Thanks > -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/ea13becc-1e74-4321-a456-497596aac124%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
