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sendmail.cf was overwritten to the default sendmail.cf after sendmail was updated in RHEL

Solution Unverified - Updated 2015-04-01T21:37:19+00:00 -

Issue

sendmail.cf was overwritten to the default sendmail.cf after sendmail was updated.
Recent updates seem to have overwritten some configuration files. In particular sendmail configuration. Sendmail does not work currently.

Environment

Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 4

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