Date: Sun, 18 Dec 2005 11:13:42 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Sasa Stupar <sasa@stupar.homelinux.net> Cc: FreeBSD Q ML <freebsd-questions@freebsd.org> Subject: Re: Long delay when sending mail Message-ID: <43A54466.3060502@infracaninophile.co.uk> In-Reply-To: <F403D998D6BBED02D84B1F2E@[192.168.10.249]> References: <F403D998D6BBED02D84B1F2E@[192.168.10.249]>
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Sasa Stupar wrote:
> Hi!
>
> I have configured mail server on FreeBSD 5.4 with sendmail 8.13.5 and
> cyrus-imapd v2. I am also using client Mulberry (but also tested with
> Tbird, Outlook Express, Outlook). I use IMAP access with all the
> clients, the server is on the same network as clients (100 Mbit
> network). The issue is when I try to send several messages one after
> another I get smtp delay message and this sometimes takes for 30 sec to
> a minute. My sendmail has configured a smart host and also to accept
> unqualified domains.
> I have attached my sendmail config.
> What am I missing here?
30s delays sounds like DNS timeouts. Check that the host running sendmail
can do a reverse lookup on the IP number of the clients connecting to it.
Simply putting IPs and hostnames of all your client boxes into /etc/hosts
should fix the problem.
Alternatively, that delay could be due to the ident protocol. Ident is
trivially easy to spoof which makes it a pointless waste of time. Putting:
define(`confTO_IDENT', `0')dnl
in your .mc file will stop ident getting in your hair.
The third possibility is that you've got quite a few milters set up there
and sendmail simply needs a bit of time to run each message through all of
them.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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