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Sendmail Problem

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by man_simon

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I get a error message "User Unknown" during
restart , start or stop the sendmail daemon using
the admin (root) right .
I don't know why
and i have already configured "sendmail.cf"
Could anyone help me ???

1 reply

by maxwell edison

The user name contains one or more upper case letters. The upper case will be first converted into lower case (lower/upper case writing must be the same in e-mails). Then it will be checked whether the user is included in /etc/passwd or not.

Write the login name in lower case!

You must edit /etc/sendmail.cf ;-) Insert a "u" at the flags (F=...) at the appropriate mailer in this mailer specification. Hint: Look for electric after "Mlocal,".
F=u --> Preserve uppercase for username

Otherwise, the user name in the address will be converted into lower case.

Note: After doing this, set SENDMAIL_TYPE=no in the file /etc/rc.config. In this way, /etc/sendmail.cf will not be overwritten.

Maxwell

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