Dear all,
Yestarday I saw such entries in logs:
2007-08-28 12:32:55 SMTP protocol synchronization error (input sent without
waiting for greeting): rejected connection from
H=aajg7.neoplus.adsl.tpnet.pl [83.4.240.7] input="EHLO void#defonic\r\n"
I guess it is another way of violating the RFC and I shouldn't worry about
it? There was no synchronization between the sender (or attacker) and my
system - this is what it seems to say to me. Just asking because I hear
these days numerous attempts are carried out to discover security holes in
available MTAs.
Regards,
Zbigniew Szalbot
www.lcwords.com