29 Apr
2003
29 Apr
'03
07:57
On Tuesday 29 Apr 2003 07:30, Matthias Riese wrote:
Apr 29 05:01:49 p15089763 server [218.79.178.192] cmd read[19922]: NOQUEUE: [218.79.178.192] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
They repeat 110 times within 13 minutes.
What triggered these logging messages?
Someone's connecting to your incoming SMTP port, but not actually using it to deliver mail, which is obviously a tad suspicious. I'm guessing someone's seeing if they can use one of the many (hopefully now patched) sendmail exploits. M -- "It's the small gaps between the rain that count, and learning how to live amongst them." -- Jeff Noon