Hi,
I have a couple of scripts that use the sendmail program, one is Dada Mailing list and the other TFMail.

Both have been configured and running successfully for a couple of years.

However, for the last two months emails sent by the both scripts (independently) to my own domain name (ie the confirmation emails) have not been arriving. Emails sent to external domains by the script are arriving. I've checked the logs and spam folders and they're not anywhere.

Can anyone suggest why this might be happening? I know sometimes the server admins modify 'dangerous' scripts, but these have been configured correctly as per the rules and not changed in years.

Any ideas to help me diagnose this would be appreciated.

Regards
Matt