why rewrite From header?

[Scott Silva]

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Tim Myers wrote:
| Matt Kettler wrote:
|
|> At 02:28 PM 10/19/2004, Tim Myers wrote:
|>
|>> Our web server uses DNS CNAME entries for its virtual hosts. Messages
|>> sent
|>> from those virtual hosts are having their From: headers rewritten
|>> using the
|>> A record hostname.
|>
|>
|> Are you sure they are being rewritten and aren't being written that
|> way in
|> the first place? Are you sure they contained the cnamed hostname in the
|> From: header when they were queued?
|
|
| Yes, they are being rewritten. But, I just eliminated MailScanner as the
| culprit. Something in sendmail is the only thing left to check.
|
| I had several possible culprits and only posted when it was down to
| sendmail and MailScanner. I just assumed that a vanilla install of
| sendmail couldn't be the problem.
|
| Sorry to bother everyone.
|
Look at your sendmail.mc file. It is one of the "Masquerade" features.
There are 3 or 4 in there.
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