I'm receiving emails saying Underliverable Mail and it'ss from one of my web sites. I'm the only one with a mail account on this particular site, but yet these mails appear to be sent from email@example.com
. The Strange_Names change, but I get these messages daily. I need to secure my sendmail pgm.
version of sendmail loaded:
I don't know what the swwsoft implies. It does not have a sendmail.mc file and I don't know how to create one from scratch.
What can I do to secure the site without stopping email for all the other domains hosted on the same server?