New to the send-auto-email scene...
I have a list of growing users and e-mails. Periodically, I send out update e-mails and whatnot to them.
What is the best way to do this? I've heard Announce Lists are the way to go, but I don't understand how people keep them in sync with a SQL database (or any other storage) of changing information. When someone opts out of the e-mails...I want them out right away.
Is there a way to keep the announce lists up to date? My other option is to make a cronjob with a PHP mailer. I've heard there is a 1000 email limit per hour? Is this true...does it apply to the Announce Lists?