Hi Guys..

I am trying to identify why some emails are not getting through, so I look in my maillog file.

Does anybody know what MAIL/EXPN/VRFY/ETRN stands for.

I get lots of these in my maillog:

... did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

and I would like to know what they are.

Googleing only gives my SENDING problems but mine are RECEIVING problems and I wondered if
... did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
only applys to sending emails.

All advice is appreciated.

Thanks,

John C