MySQL/php mailing list performance

[zeeshan]

Hi,

I have a quick question about performance with regards to mySQL and php. I have a table with approx. 20,000 user records. I want to build a php script that will basically go through each record and send (the same) mail to every one of those 20,000 users. The site runs on a dedicated machine, so that isn't an issue (at rackshack).

My question is: Will the dedicated server/php/mySQL work in delivering mail to all 20k users? (Reliably?)

Also, is there some way ONE message can be sent by Bcc'ing all 20k users in php?

Thanks for the help.

[Defender1]

You can BCC it to everyone, but some web mail providers like Yahoo! automatically send bcc's into bulk mail, and lots of users just delete that stuff w/o even looking at it.