Re: sendmail redirecting mail to aol.com/rr.com/isps blocking dynamicip's

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On Tue, 24 Jun 2003, Joe wrote:

> Satish Balay wrote:
> 
> >On Mon, 23 Jun 2003, joe wrote:
> >
> >  
> >
> >>Mr. Adam ALLEN wrote:
> >>
> >>    
> >>
> >>>I've done quite a bit of searching and reading but haven't found an
> >>>answer yet.
> >>>
> >>>AOL.com and RoadRunner block incoming mail from IP's that belong to
> >>>residential customers- my ISP's server is a bit flaky at times.
> >>>
> >>>I want to instruct sendmail (can be convinced to use postfix easily), to
> >>>forward mail for specific domains to the ISP's SMTP server, and all
> >>>other mail through my own sendmail. 
> >>>
> >>>      
> >>>
> >>Someone has posted the sendmail answer.
> >>
> >>I recently switched to postfix, so here is the postfix solution in case 
> >>you are interested:
> >>
> >>edit /etc/postfix/transport and add the entries for special handling as 
> >>follows:
> >>
> >>aol.com           my.isps.mail.server
> >>roadrunner.com    my.isps.mail.server
> >>
> >>Then type "postmap transport" and you're good to go
> >>    
> >>
> >
> >How would you do this for an authenticated SMTP server (aka SSL)?  I'm
> >also interested in this info - as I use postfix locally for my
> >outgoing mail.
> >
> hmm I've never experimented with this - all the
> mail servers I've worked with are open for public
> connections....

The alternative for me would be to speicfy multiple smtp relays for
these special case stuff. Is it possible? something like:

aol.com           my.isps.mail.server/someother.mail.server/localhost:10025
roadrunner.com    my.isps.mail.server/someother.mail.server/localhost:10025

This way postifx-sendmail tries 'my.isps.mail.server' first - if it
can't send mail through that - tries 'someother.mail.server' - else -
tries the 3rd alternative 'localhost:10025' aka ssh forwared port.

The reason for this is - I'm using 'postfix' to send mail from my
laptop - and it can be in different netowrks every day (home - ISP -
work - WORK) - and they accept unauthenticated relay form within the
netowrk (not outside). So either I do this - or have a 3rd party smpt
- relay - which is authenticated/ssl.

I guess the third alternative for me would be - always use ssh
forwared port for this.. which should always work. The reason I
hesitate this always rely on this is - I usually forget to start the
ssh connection before sending this special mail (and the mail would
sit in the posfix queue for ever)

aol.com           localhost:10025
roadrunner.com    localhost:10025

Thanks,
Satish




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