Error in Sendmail Tail : "apache set sender to <> using -f"
I have SM running on a Linux 8 server. It works fine but I just noticed this one error in the log file:
Jan 30 11:11:24 spamman sendmail: i0UGBOos003849: Authentication-Warning:spamman.headquarters: apache set sender to <> using -f
Anyone know what this means? I have setup SM to email me when there are mail issues or errors so I am not too sure what this means. I searched LQO and even searched online but I couldnt seem to locate a similar error. Hopefully someone can assist.