When an attachment in your outgoing Outlook message is too big, it may get stuck in your Outbox and freeze Outlook as the application continually tries to send it. This type of problem is generally ...
I've sent a PM, and it's in my "Outbox". If this were email, that would mean it's broken, but there's no Send/Receive equivalent that I can find. A different test PM to myself went straight into "sent ...
I got a PM on Jan 5 and replied to it on Jan 6. At least, I thought I did! I happened to check my PMs today and that reply is still sitting in the outbox, four days later. I double checked "Sent ...