I'm occasionally seeing file attachments being logged, like so:
postfix/smtpd[14027]: read from B8F5EDA8 [B8F5F9BD] (1420 bytes => -1
(0xFFFFFFFF))
postfix/smtpd[14027]: read from B8F5EDA8 [B8F5F9BD] (1420 bytes => 1420
(0x58C))
postfix/smtpd[14027]: 0000 33 13 c9 09 3f ef 6f 99|0b a8 67 8c 6c 05 de
9d 3...?.o. ..g.l...
etc.
In master.cf, I have:
smtp inet n - - - - smtpd
-o content_filter=spamassassin
...
spamassassin unix - n n - - pipe
user=spamd argv=/usr/bin/spamc -f -e
/usr/sbin/sendmail -oi -f ${sender} ${recipient}
So, I think it may be spamassassin that's responsible. Or could it be
something I've done wrong in master.cf? I don't want/need to see these
filling up the logs.