sendmail mailscanner exchange gateway

Glenn Steen glenn.steen at
Thu Nov 27 22:43:21 GMT 2008

2008/11/27 Kit Wong <Kit at>:
> Hi All
> I have setup a gateway using sendmail, mailscanner then to exhange as found
> Using this method however has its problems. Unknown email addresses are
> not rejected at the MTA level, which causes unneccessary load on MS.
> Is there a method where I can configure sendmail to accept only valid email
> address then process it by mailscanner and smtp forwarded to the desired
> exchange server?
> Thanks in advance
> Kit

You can use a milter to do recipient address verification, if neither
of the other suggestions are to your liking... As mentioned on the
wiki (another article in the sendmail how_to folder), smf-sav is OK.
Look at

-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se

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