OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
Re: receipt failing for a small number of hosts

From: Justin Garten (jgartengmail.com)
Date: Wed Apr 04 2007 - 20:45:29 CDT


That's one of the strange things about this, no logs are being
generated. I've gone as far as changing the master.cf file to:
smtp inet n - n - - smtpd -v
to get verbose logging on all connections. I can send mail from any
other account and witness the process in full detail, but when
messages are sent from this account, absolutely no messages appear in
the logs.

If there's a way to get even more detailed information to the logs, let me know.

At this point I'm not sure where to look next. Since I'm not even
seeing an incoming connection from them, could this be a DNS lookup
issue? Even a suggested direction would be helpful.

Thanks in advance.

On 4/4/07, mouss <mlist.onlyfree.fr> wrote:
> Justin Garten wrote:
> > We have postfix setup using virtual domain mappings for incoming
> > addresses. For most hosts, this is not producing any errors. There
> > is at least one which is sending users the following message when they
> > try to send messages to addresses at our domain:
> >
> > RCPT TO <AAAAAAAAA.com> failed: Requested action not taken: mailbox
> > unavailable
> >
> > I tried turning off the smtp vrfy command to see if this host would
> > default to allowing messages to send but that didn't help.
> >
> > Any suggestions would be greatly appreciated. So far it is only a
> > single host that I know of that is receiving this error, but I don't
> > know if there are others.
>
> where are the logs?
>