MailScanner & CentOS5/Sendmail
MailScanner at ecs.soton.ac.uk
Fri May 16 08:41:56 IST 2008
Henry Kwan wrote:
> Gerard Cleary <gcle <at> smcaus.com.au> writes:
>> Our system uses Centos 4.5 and Sendmail.
>> /var/spool/mqueue has modes 700 and ownership root.mail
>> /var/spool/mqueue.in has modes 700 and ownership root.root
> After looking at MailScanner.conf again, I realized my mistake. I had set "Run
> As User" and "Run As Group" to "mail". Didn't even see the "(not normally used
> for sendmail)" bit a couple of lines up. After unsetting them, everything is
> working now.
> After sending a few test emails, I noticed that MailScanner/sendmail doesn't
> reject unknown users at the SMTP stage but rather it accepts the email for
> delivery and then a DSN is generated afterwards.
> How do you get sendmail to reject at the SMTP stage like postfix does with
You need FEATURE(blacklist_recipients) I think. It is certainly *very*
possible and quite simple to do in sendmail. I always thought it did it
by default :-)
Julian Field MEng CITP CEng
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