Date: Friday, August 05, 2022 10:39:04 -0400 From: Frank Bures buresf@gmail.com
I have my CentOS7 sendmail configured to relay outgoing system e-mail through my gmail account.
The setup recently stopped working. Gmail SMTP keeps returning "service unavailable".
I think it has something to do with the recent changes in Gmail authentication procedures.
Does anyone know how to make the relaying work again? I could not find anything on the Net.
I'm assuming you are pushing the mail to gmail through port 465 or 587. If that's the case, if you aren't already, you will need to set up and use a google "app password". Alternatively, get whatever you are using on the centos side that authenticates with gmail to support OAuth 2.
You can no longer use your google side-wide password to authenticate 3rd party apps with gmail so need to use one of the alternatives in its place.
I would actually expect you to get an authentication failure message so they may have changed something else that disabled this approach.
I can send mail from my C7 box (via sendmail) to myself at my gmail account using gmail's smtp server. I don't very often forward mail THRU gmail to other sites, so I don't know if that has changed.
On Fri, Aug 5, 2022 at 11:14 AM Richard lists-centos@listmail.innovate.net wrote:
Date: Friday, August 05, 2022 10:39:04 -0400 From: Frank Bures buresf@gmail.com
I have my CentOS7 sendmail configured to relay outgoing system e-mail through my gmail account.
The setup recently stopped working. Gmail SMTP keeps returning "service unavailable".
I think it has something to do with the recent changes in Gmail authentication procedures.
Does anyone know how to make the relaying work again? I could not find anything on the Net.
I'm assuming you are pushing the mail to gmail through port 465 or 587. If that's the case, if you aren't already, you will need to set up and use a google "app password". Alternatively, get whatever you are using on the centos side that authenticates with gmail to support OAuth 2.
You can no longer use your google side-wide password to authenticate 3rd party apps with gmail so need to use one of the alternatives in its place.
I would actually expect you to get an authentication failure message so they may have changed something else that disabled this approach.
CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
On 8/5/22 11:14, Richard wrote:
Date: Friday, August 05, 2022 10:39:04 -0400 From: Frank Bures buresf@gmail.com
I have my CentOS7 sendmail configured to relay outgoing system e-mail through my gmail account.
The setup recently stopped working. Gmail SMTP keeps returning "service unavailable".
I think it has something to do with the recent changes in Gmail authentication procedures.
Does anyone know how to make the relaying work again? I could not find anything on the Net.
I'm assuming you are pushing the mail to gmail through port 465 or 587. If that's the case, if you aren't already, you will need to set up and use a google "app password". Alternatively, get whatever you are using on the centos side that authenticates with gmail to support OAuth 2.
You can no longer use your google side-wide password to authenticate 3rd party apps with gmail so need to use one of the alternatives in its place.
I would actually expect you to get an authentication failure message so they may have changed something else that disabled this approach.
"app password" has done the job.
Thanks a bunch Frank
-
Frank Bures -
Fred -
Richard