> -----Original Message-----
> From: exim-users-admin@??? [mailto:exim-users-admin@exim.org]On
> Behalf Of David Harris
> Sent: Sunday, November 23, 2003 11:54 AM
> To: exim-users@???
> Subject: [Exim] HELO & multiple domains
>
>
> I run several domains from one box. For various reasons I
> wont go into I can
> only have 1 IP address so change of ISP is not feasible. For
> the most part
> exim seems to work fine almost out of the box. However,
> whichever domain I
> send mail from the helo
> greeting responds with the primary_hostname & qualifying
> domain: so if my
> primary host name is 'foo' and my qualify_domain is
> 'bar.com' and I send
> from one of my other domains, e.g. wibble.com the helo data is 'helo
> foo.bar.com' not 'foo.wibble.com' .
>
> The mail actually get sent OK. The problem however is
> information leakage. All
> this didnt use to be a problem since I used to use just the
> host name with no
> qualifying name: e.g. just 'foo' but now a few remote hosts
> are declining me
> and insisting on a fqdn, anti-spam I guess. Problem is that
> the above issue
> causes information leakage and a customers using one of my
> professional
> domains looked at my headers has commented on the content of
> other domains as
> being unprofessional.
>
> I need to solve this leakage. but I havent been able to
> figure out how to get
> it give the right helo dependant on each domain Im sending
> from. I want to be
> able to say something like;
> 'remote_smtp:
> driver = smtp
> helo_data = ${sender_domain)
> or
> helo_data =
> ${lookup{sender_domain}lsearch*{/etc/mail/domains/helo}{$value}}
> '
> but as an exim newbie I couldnt figure out the syntax either.
> Anyone got any ideas? thanks
>
>
A couple come to mind:
If you have a standard ptr/A record setup for each domain such as
"smtp.domain" then
helo_data = smtp.$sender_address_domain
But if you have different host names depending upon the domain then
helo_data = ${lookup{${lc:$sender_address_domain}}lsearch \
{/etc/mail/domains/helo}{$value}{$primary_hostname}}
File Format Of /etc/mail/domains/helo
domain1:helohost.domain1
domain2:helohost.domain2
I haven't tested but I think I have all the bloody brackets covered
Rick
