On Tue, 4 Oct 2005, Colin Cotter wrote:
My work doesn't give access to their smtp server from outside their domain,
so I decided to set up sendmail on my machine with my work email address so
I can send messages from home. However, any self-respecting mail server
bounces back my email because it says it is from localhost.localdomain which
is a very good indication that I am sending spam.
A fairly common problem these days - especially for laptops.
If you always wish to send mail from one account (ie, work) - a VPN is
the safest solution; that way you avoid SPF and other spam detection
issues.
Another approach, that I use on my laptops, is to use the Debian
sendmail hooks for ifup/ifdown (via dhcp/ppp) to customize the sendmail
configuration based upon what network you attach to.
I have the following connection profiles setup:
/etc/mail/peers/ibm.com -- when at work (send via work smarthost)
/etc/mail/peers/cavein.org -- when at home (send via home smarthost)
/etc/mail/peers/dslextreme.com -- fallback to ISP smarthost
/etc/mail/peers/default -- traveling, use my home smarthost via 587
The profiles do thinks like:
* set smarthost
* set domain to masquerade as
* set hostname to use
When eth0 comes up, it updates my caching DNS, sendmail, restarts
fetchmail, etc.
the support is enabled via these two .m4 files:
include(`/etc/mail/m4/dialup.m4')dnl
include(`/etc/mail/m4/provider.m4')dnl
Let me know if you need further information or have problems using
this support.
--
Rick Nelson
"Whip me. Beat me. Make me maintain AIX."
(By Stephan Zielinski)
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