ConfigServer Community Forum

Yes, I experienced the same '503 AUTH' issue with a cPanel server and Squirrelmail (Roundcube was working fine).
It seems that localhost IPv4 & IPv6 is automatically added to the /etc/exim.smtpauth file, but as previously mentioned the IPv6 IPs are not in quotes and Squirrelmail is using IPv6 (::1).
I manually added the quotes and Squirrelmail is working fine now.

/etc/exim.smtpauth:
127.0.0.0/8
"::1"
"::1/128"
...

Thanks for the upcoming CSF update!
I very much like the CSF SMTP_AUTH functionality, which came just in time to the amounting SMTP attacks.


Thank you very much!

PS.
As a temporary workaround for csf v7.04 until the next version is released:
- Edit /etc/csf[DOT]pl line 1545-1546
From:
print SMTPAUTH "::1\n";
print SMTPAUTH "::1/128\n";
To:
print SMTPAUTH "\"::1\"\n";
print SMTPAUTH "\"::1/128\"\n";

With this change /etc/exim.smtpauth will be generated correctly after restarting csf + lfd.

We were just releasing a fix for this in v7.05:
http://blog.configserver.com/?p=2267

Great! And already installed. Thanks a mill!

Oops, wrong posting