There are 11 entries waiting in the outbox since October 16.
Yesterday, the number was still 12. For this reason, I deleted the first one and resent it. It has gone into the outbox again, but now it has been sent. Seems that I've to do the same thing with the remaining 11 ones.
(Originally, I was sending 29 PMs at once; 17 of them had been sent more or less immediately, but 12 went to lurk around in the outbox since then.)
Somewhat strange - isn't it?
There's no business like RT business ...