[ral315]

Apologies if this has been answered before; I've searched and found a few threads that are similar, but didn't answer my question.

I'm having an issue with a Blackberry that's sending duplicate e-mails. (Not receiving them, sending them). It doesn't happen all of the time - there doesn't seem to be any rhyme or reason as to why it sends twice.

It's an 8900 on AT&T, and the account is from a Gmail-hosted account on my own domain (mydomain.com, let's say). There are two accounts on the Blackberry - , and . The problem is happening on mydomain.com; I haven't noticed this occurring on the Gmail.com account, but it's possible that it's happening there as well.

Whenever this happens, the headers of both messages are the same - i.e. they're both coming from mydomain.com.

Distinguishing this issue from similar ones I've found, I should point out that:

A) It's not the Gmail issue where someone receives messages they've sent in their inbox.
B) It's not the issue where someone receives multiple e-mails on their Blackberry - I'm sending multiple e-mails.

Any thoughts?