I'm writing a prayer chain script which, when a user submits a request the info is to be collected into a mysql table to be proof read by an administrator before being sent out to a group of volunteers on a mail list. Currently I will be using a mass mailer program which I bought for sending the requests out however, the thought of incorporating a mass mailer script into the program occured to me since when done the program will handle more than just prayer requests.
My question is what kind of problems can I expect to run into? I'm sure I could get names and email addresses out of the mysql db but I hear about things like the server timing out when the maillist is large. Is there some "secret" to writing a successful email program to overcome such issues? I would like to make the program a free download but to require one to have to buy a mail program is not something I had in mind as not everybody can afford one. If I can overcome this one it will be real icing on the cake.
