I have a similar problem.
Some users need send mail to some domains such as yahoo or hotmail, for some
reason the emails to these domains were transferred at very low speed,
making global mail queue slow.
I managed to solve it by raising a new instance of XMail, with only the SMTP
port number 1025 and the following parameters: "-Md -P- -B- -Sp 1025 -X- -Qn
3 -Y- -F- -C- -W- -Ll -Pl -Sl -Ql -Yl -Fl"
in smtprelay.tab file only the line: "127.0.0.1" "255.255.255.255"
And in original XMail the following configuration:
smtpfwd.tab:
"*yahoo.com""127.0.0.1:1025"
"*hotmail.com""127.0.0.1:1025"
so you can separate these emails in an alternative queue with 3 simultaneous
connections form SMTP.
Cesar Meloni
2010/10/6
>
> Hi Bill
>
> I have the same problem too from some days with 'orange/wanadoo' here in
> France then some of my customers send 'little' newletters for max 10 final
> users to orange/wanadoo (really not spam).
> Now, they servers limit incoming connections to about maximum 3 incoming
> sessions at a time
> (xmail does send same mail at once (one mail to, multiple rcpt to) to same
> final domain)
>
> At this time there is only one solution in xmail, the -Qn cmd line option
> limiting 'global' xmail output threads (so limiting in fact max
> simultaneous
> outgoing connections)
>
> BUT as noted, it affect xmail for ANY destination, so at this time, my
> server regulary have many mails waiting for first attemps to delever ! and
> is slow to send mails :(
>
> So I have allmost the same question to Davide : could it be possible to say
> xmail to 'slow down' when sending to specific final domains mx servers (use
> of smtpfwd.tab with new options, max conns or delay between each conns ?)
> letting normal -Qn do its job for others domains ?
> Or a new -QMXn saying no more than n simultaneous connections at the same
> time per unique final mx ?
>
> Francis
>
>
>
> >-Message d'origine-
> >De : xmail-boun...@xmailserver.org
> >[mailto:xmail-boun...@xmailserver.org]de la part de Bill Healy
> >Envoye : mercredi 6 octobre 2010 07:52
> >A : 'xmail@xmailserver.org'
> >Objet : [xmail] Multiple outbound smtp connections
> >
> >
> >How many connections will xmail make to a particular server at one time
> >if there are many messages to deliver to the same domain? And
> >is there a
> >way to limit the number if the answer is more than a few?
> >
> >Reason I ask is that mail to a particular domain is being delayed by a
> >temporary error saying there are "too many connections" try later. The
> >people in charge of said server say that xmail must be making more than
> >5 connections to one server or 3 to another of their servers
> >to get that
> >message.
> >
> >I've looked through the docs and can't find any way to limit the number
> >of simultaneous connections to a server, is there such a setting? I
> >thought there was, but can't find it.
> >
> >Thanks,
> > Bill
> >
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> >
>
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