ConfigServer Community Forum

Forget about 162.251.x.x, it's from a monitoring agent, misread it as google.

What CSF log file will show if it rejects an external email delivery? Any way to turn on verbose logging?

Also, adding /etc/csf/gmail.ignore as suggested above did not permit gmail emails to be delivered.

No, no entries in /etc/csf/csf.blocklists

With CSF enabled, I see this line in the lfd.log periodically: May 11 08:24:35 178 lfd[31843]: (sshd) Failed SSH login from 162.251.160.214 (US/United States/phoenix10.monitorengine.com): 5 in the last 3600secs - *Blocked in csf* [LF_SSHD] This IP shows that it is from google but can't be sure if it...

OK, that may help with gmail. What about all the other domains that may send email, add each one?

You solution does not address the issue with CSF blocking ALL external emails.

The issue is receiving email from gmail, ymail, etc, not sending it. There is no DMARC record for this domain. I shut off CSF and mail started flow from many external sources. Here's the last few of lfd.log: May 10 11:01:32 178 lfd[29984]: *User Processing* PID:29965 Kill:0 User:admineldo23 VM:588(M...

What log would you like? The send email has at the bottom "The recipient server did not accept our requests to connect. Learn more at https://support.google.com/mail/answer/7720 [mail.mywebsite.org. 68.178.203.178: timed out]"

CSF is blocking all external email (gmail, hotmail, yahoo, etc). I have seen a few discussions on this topic here but nothing specifically fixes the problem. CSF v14.18 WHM/cPanel 110.5 External emails work fine when CSF is off. I saw one thread that mentions something about WHM v110.5 and sshd and ...