> > nikos wrote: > >> Yesterday seemed that clamav-milter blocked sendmail and we couldn't send > >> any mails. > >> I receive the next message: > >> > >> Sep 4 17:41:36 server clamav-milter[24326]: hit max-children limit (5 >= > >> 5): waiting for some to exit > >> > >> After restartarting milter everything worked fine. > >> > >> Can someone explain what happened? What should I prevent? > >> > >> We use RH-9 with the last clamd version > >> > >> Thanx - Nikos
I do think that there is too much of a danger of denial of service attacks or mail failure due to the milter crashing if you scan your mail during the SMTP phase. I have regularly seen ISPs that can't accept mail because of this problem. I would (at the risk of being repetitive, as I have argued this before) therefore like to point out the benefits of using a manager for clamav such as Amavis (which I have never used) or MailScanner (which I do use and highly recommend). This means that your MTA can cope much better with a large peak of incoming mail and then let the scanning manager take care of the virus scanning (as well as other actions such as dealing with spam, complying with user policies etc) off line. Regards Jim Holland System Administrator MANGO - Zimbabwe's non-profit e-mail service Tel: (263-4)-334111/304471 _______________________________________________ http://lurker.clamav.net/list/clamav-users.html
