I meant to add that there may be controls in Pegasus that do not allow so many messages to be sent at once (because of spammers). So if you have been trying the "send all queued mail" and it hasn't worked, you might have to look into that. I've never tried sending a gazillion messages, so I don't know... but if you just send yourself one email and collect it, you can eliminate your setup as the problem. And send that message without going to queue (as I mentioned to you in another reply).
I meant to add that there may be controls in Pegasus that do not allow so many messages to be sent at once (because of spammers). So if you have been trying the "send all queued mail" and it hasn't worked, you might have to look into that. I've never tried sending a gazillion messages, so I don't know... but if you just send yourself one email and collect it, you can eliminate your setup as the problem. And send that message without going to queue (as I mentioned to you in another reply).