Sending a PM out to all users??

[gobears20]

I have over 12k members on my board and one time I tried to send a PM out to all of my users and I only sent out 300 at a time and it crashed MySql along with my webserver. I did only have 1GB of ram on the server at the time. It went through a decent amount and then crashed.

I now have 4GB of RAM on my server and I was wondering, what are some things that would help me get do this without crashing? Should I just send out a few at a time, I mean take the number down to 100 at a time?

I really don;t want to send out emails and generate a mailing list. I would rather do it the PM way.

Thanks for any help with this!

Jason
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