Today our exim was dead and we couldn't get it back online without reinstalling it.
Now we and our clients are not able to connect to SMTP anymore.
Webmail works just fine, but smtp is not.
For example sending email from outlook to my gmail.com returns the following error, but sending email from webmail to the exact same email address works fine.
I tried both ports 25 and 587. both are open in the firewall.
How can I solve this?
I also ran a force cpanel update but it didn't help.
Now we and our clients are not able to connect to SMTP anymore.
Webmail works just fine, but smtp is not.
For example sending email from outlook to my gmail.com returns the following error, but sending email from webmail to the exact same email address works fine.
Code:
503 Valid RCPT command must precede DATA
How can I solve this?
I also ran a force cpanel update but it didn't help.
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