That makes sense; I got a response and they had moved to my sent folder.

That's how I think it works on PlayDip, anyway. And we've largely adopted the same system.

I believe they stay highlighted in your outbox until the person you send them to had read them.

I also have PMs stuck in my outbox.

Weird.. it's not like the messages have to go anywhere, it's all just one database.

okay that's what i thought. i have some messages sitting in my outbox. is there some other step i have to take to get messages in my outbox to send? or is this a bug?

Outbox messages are usually messages that are in the process of sending where as a sent message has been sent and is no longer in progress

what is the difference between "outbox" and "sent messages"?

If they haven't logged into the forum yet, their account doesn't yet exist on the forum. When you open the forum, your account is automatically registered and then the PM system on the forum works. You can still send PMs through the previous PM system.

I am not able to send PMs to certain users. I get the error that the user does not exist. They definitely exist so I’m not sure what I’m doing wrong.