Hello,

I'm looking for feedback from people who have set up some sort of bulk mailing with PHP to see what works well and what doesn't. About all I know in that area is that it's inefficient to run the mail function in a loop. Are people using Pear packages, or have you found other classes that work well? Does the BCC header work fine for hundreds or thousands of recipients?

Additionally, I've gone over the documents in the Legal section, but I haven't found any mention of email limits. Does The Planet limit the amount of email that a server can send? We've got our own dedicated server. One of our clients is set up with a system that contains about 65,000 users at this point, with around 10,000 users or so added per month. I doubt they will need to email all of the users at once, but would we run into any network or server-imposed limits?

The two possibilities we would need would probably be to send a single message to a list of users, and another to send a template where it would fill in the user's name or some sort of account details. For the first one, sending 65 emails to 1000 BCC'd recipients doesn't really seem very elegant, are there any better solutions out there? For the second, I guess we can't get around generating a unique email for each user, so if we have tens of thousands of unique emails to push out, what's the best way to go about that?

I know bulk mailing isn't exactly a great thing to talk about, but I appreciate any feedback. Thanks.