i found the following log entry:
Nov 10 02:05:01 gnom5 sendmail: lAA14tZ9003913:
from=<Sdunaycef (at mark) myfirstmail.com>, size=27676, class=0, nrcpts=1,
msgid=<2B34FADC.336B0E30 (at mark) myfirstmail.com>, proto=SMTP, daemon=MTA,
relay=localhost [18.104.22.168] (may be forged)
Nov 10 02:05:17 gnom5 sendmail: lAA14tZ9003913:
to=wburmester (at mark) textile-pressing.de, delay=00:00:19, xdelay=00:00:00,
mailer=esmtp, pri=58770, relay=mail.textile-pressing.de.
[22.214.171.124], dsn=5.7.1, stat=User unknown
none of them is my ip or domain ... but 126.96.36.199 resolves to
;; ANSWER SECTION:
188.8.131.52.in-addr.arpa. 78975 IN PTR localhost.
is this the trick (together with "localhost RELAY" in sendmail
access)? I can't believe ...
how can i configure sendmail to stop that?