Yuppa, Gero Lindenblatt wrote:
Hi, since yesterday my sendmail 8.11.3 does not relay any more. In the /etc/mail/access nothing was changed. I restarted sendmail again and again. but nothing helped.
In /var/log/warn there are serveral lines like "sendmail[11695]: g4212j111695: collect: premature EOM: Error 0"
Could this be a reason or am I hacked ?
did you apply any changes to your firewall? Do you use the SuSE-FW or a
selfmade script? Kernel version? SuSE-version? Shoe size? Favourite
colour? Confession? :)
Sendmail messages like the one above show up for various reasons. I once
had a similar problem with a sendmail MTA and a Checkpoint firewall in
front of it. The firewall apruptly ended all SMTP connections with a RST
instead of correctly finishing the handshake, which lead to the error
(and other annoyances).
Maybe the reason for your relay problem is a "too securely" configured
SMTP fw ruleset.
It's difficult to tell wether there's more behind this error or not. A
comprehensive review of your system logs may help here.
Feel free to contact me via private mail if you want to discuss the
problem further.
Boris