Matthias Haegele wrote: > Michelle Konzack schrieb: > >> since arrount 5 days I am hit by several 10.000 very small (~2 kByte) >> messages which use my email addresse in "From:" and "To:"... >> >> Does anyone know, how to stop this shit effectively? >> >> 1st mail server is courier-mts + courier-imap + spamassassin + clamav >> 2nd mail server is postfix + dovecot + spamassassin + clamav > > search for backscatter: > > http://www.postfix.org/BACKSCATTER_README.html
This is a good README for general knowledge, but I do not believe Michelle is describing backscatter. Michelle, There are a few ways to address the problem of sender == recipient spam, but do familiarize yourself with all the consequences of blocking such mail. As Kai mentioned, this is turning into somewhat of a FAQ on a few mailing lists, so search the archives (here and on postfix-users) for proposed solutions. Benny posted a method using postfwd (http://postfwd.org) last week: id=EQUAL_001; action=REJECT sender is recipient; sender==$$recipient -- Sahil Tandon <sa...@tandon.net>
