Upgrade to BitMessage 0.4.4

If you are still using BitMessage 0.4.2 chances are that many messages will get lost on the interwebs.

Upgrade to 0.4.4 for improved performance :
https://bitmessage.org/wiki/Main_Page

Or at least this is what happened to me and someone else as reported in this forum

I’ve noticed that my BitMessage performance has largely returned to its original reliable state since upgrading, as long as the recipients of my messages are upgraded as well.