Rolling Resource

This is a sendmail error and causes the header X-Authentication-Warning: to be added to your email. It occurs when sendmail is accessed without logging in and you have PrivacyOptions=authwarnings in your sendmail.cf file.

If you have access to your sendmail configuration, then simply remove authwarnings from the line beginning “O PrivacyOptions=” in /etc/mail/sendmail.cf. (I did not start to get this error until I enabled the genericstable feature).

If you do not have access to your sendmail setup, then all email you receive will probably have it added as a header. However, you may be able to avoid adding this header to your outgoing email by configuring your email client so that it logs in to sendmail first. Here is how to configure some common email clients

Outlook

Click on menu item Tools
Click on submenu item Options…
Click on Mail Setup tab
Click on E-mail Accounts… button
Select the option View or change existing e-mail accounts
Click on Next
Select the account you wish to change
Click on the Change… button
Click on the More Settings… button
Click on the Outgoing Server tab
Select My outgoing server (SMTP) requires authentication
Select the option Use same settings as my incoming mail server

Outlook Express

Click on menu item Tools
Click on submenu item Accounts…
Click on the Mail tab
Select the account you wish to edit
Click on the Properties button
Click on the Servers tab
Select My server requires authentication under Outgoing Mail Server
Click on the Settings button
Select the option Use same settings as my incoming mail server

Thunderbird v1.5

Click on menu item Tools
Click on Account Settings…
Select Outgoing Server (SMTP) in the left hand pane
Select the server you wish to edit in the right hand pane
Click on the Edit… button
Select Use name and password under Security and Authentication
Enter your User Name
Select option No for Use secure connection unless you have SSL installed.