Simulating a Mailing List

[dpearre]

I'd like to build a simple web-based mailing list manager in PHP4. I'm hosting on someone's commercial server, so I wanted to know if using the Mail function in connection with say, 50-1000 email addresses in a mysql database would pose a strain on their system.

i'd probably just use a while( ) loop to mail some message once every few days. is this a dumb way of going about this?

thanks everyone,

david