Thanks for both your posts.
The Postmaster account (Admin) is a real Pegasus Mail account. All mail delivery failure messages etc go to this account. I did not want these going to my own mailbox as I have enough mail as it is ;) It works fine and it keeps the mail administration separate and easier to manage.
I looked at the folder heirarchy, and ..\mail\admin does not exist - there is no 'mail' folder off Mercury. Presumably this is just a variation in the way our mail system is setup.
Pegasus and Mercury are installed as follows:
Pegasus Mail:
E:\DC\PMAIL\<User mailboxes> (including Admin)
E:\DC\PMAIL\<Pegasus application files>
Mercury:
E:\Mercury\...
The pmail.usr file located at E:\DC\PMAIL\ includes the line:
A;Admin;Mail Administrator
I tried to send another subscription request from within Mercury. This is what mercury.log shows:
E 20080501 0913 [Unknown] postmaster@apsarchaeology.co.u Notification discarded - potential loop.
I 20080501 0913 MG000002 postmaster@apsarchaeology.co.u Maiser 270
Does the [Unknown] part correlate with what Dilberts LN describes above? I am not sure how this can be traced as the only log of the transaction appears to be in the mercury.log file only.
Any further suggestions are very welcome.
Thanks for the continued interest and help.
Cheers!
Edit:
Also, there is no forward file in the Admin folder.