Re: Mail(): Does it block question?

Rasmus Lerdorf wrote:

So, depending on your sendmail configuration, and how you are invoking sendmail (see your php.ini file) it will be non-blocking if you tell sendmail to simply queue it.

Ok. I'll look into what settings are important in php.ini

For high-volume mail delivery, you should be using a dedicated mailing list system. Have PHP send a single message to the list and let the list system do the mass-delivery for you. Right tool for the job and all...

Totally agree. But just what is "high-volume" is my question ... I guess I need to do some testing to find this out perhaps ... Would you have any recommendations on a simple mailing list system that integrates well with PHP? I'm building a password protected site and want to email users their passwords and also allow people to have their passwords mailed to them. There would be about 10,000 users so I figure the demand for passwords would be at most one per second during peak time. Jc