[cobalt-security] Pros & Cons of change to Sendmail and can you do this on a Qube 3 ?

["Chuck Lewis" <clewis@xxxxxxxxxx>]

Hi Folks,

Was reading something at lunch and the writer said he "believed" that
Sendmail already supported what he was proposing - configuring mail servers
to drop e-mails from servers whose IP does not match the FROM domain.

I guess first, CAN Sendmail be configured to do this and if so is that
supported on the Qube 3.

And then of course are there any negative ramifications of doing this ?
Obviously it will reject any sender email not ID'ing the sending email
server but is there legitimate email that comes that way ?

Thanks !

Chuck
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