OT: Multiple Outgoing IPs?
jimc at laridian.com
Mon Apr 2 22:09:12 IST 2007
> -----Original Message-----
> From: mailscanner-bounces at lists.mailscanner.info
> [mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf
> Of Matt Hampton
> Sent: Monday, April 02, 2007 3:08 PM
> To: MailScanner discussion
> Subject: Re: OT: Multiple Outgoing IPs?
> Jim Coates wrote:
> >>> I have multiple public IPs available to my box, I just
> >> don't know if
> >>> its possible to configure SendMail to always associate a
> >>> outbound domain with one IP and another outbound domain
> >> with another
> >>> IP.
> Makes perfect sense. However a straightforward sendmail installation
> can only have one "client" ip per protocol (i.e. you can have
> one client
> address for IPv4 and one for IPv6 but not 2 for IPv4).
> However there may be a way around this but it depends on
> whether you are
> willing to accept a small delay in your outbound email for one of the
> Here's how I would do it.
> Modify your existing sendmail.mc file and add the following line:
> CLIENT_OPTIONS(`Family=inet, Address=A.B.C.D')dnl
> Create a separate config file with
> CLIENT_OPTIONS(`Family=inet, Address=A.B.C.E')dnl
> FEATURE(queuegroup, `mqueue2')dnl
> QUEUE_GROUP(`mqueue2', `P=/var/spool/mqueue2')
> Then modify "Outgoing Queue Dir" in MailScanner to a rule set
> to put the
> second domain into the new queue directory.
> Modify the queue runner interval on the queue for a suitable
> value and
> (if you use NAT for your system there is also the "b" Daemon port
> modifier which will send outbound email from the same IP
> address that it
> was received)
Thanks guys... I will see what I can work out with this info and my hosting
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