What steps will reproduce the problem?
1. Have an engineer place a MOLL-E, or acquire the pony bridle for your gruntling/squire companion and have him provide a mailbox.
2. Access the mailbox.
3. Note that the addon registers your current location and creates a db entry for that, visible as a mailbox icon on the map.

What is the expected output? What do you see instead?
"Expected" or let's say wanted output would be not registering such non-permanent mailboxes.

What version of the product are you using?
v1.04

Do you have an error log of what happened?
-/-

Please provide any additional information below.
Can't believe there isn't already a ticket about this, also found nothing on the forums, while the pony bridle is rather new, MOLL-Es have been around for a while. I checked the event fired on visiting a mailbox, seems it doesn't even have any argument anymore (WoWWiki mentions a first argument, but unless I did something wrong, I didn't get that one) so I can't even think of anything to detect such variable mailboxes, but I wanted to report it anyway, maybe you have an idea.