Send massive emails by php as forum does.

[MacX]

Well first of all, if this topic needs a change of subforum, do it. I didnt know where to post it.

I need to send an email to 900 or 1000 user adresses each week, but i am scared of servers to catch it as SPAM.

Once i send a massive email to all my forum users and i saw that it sent them in small groups and maybe with a period of separate time between them.

I have thought that i could do the same sending emails with a while (one by one) in groups of 20 or 20 and then using the function SLEEP of php to wait 10 or 20 seconds between groups of emails, but i still didnt know if it would be consider as SPAM for hotmail, gmail, yahoo... (or even for my host server)

What do you think must i do?
Have you done it any time?

Lots of thanks and sorry for my spanish 

[verydumb]

Install php list. It sends them out so many at a time per hour.

[karlbenson]

SMF 2.x has a mail queue which is able to send in small chunks.
Although it still might get detected as spam by sheer volume reaching gmail/hotmail servers.

[MacX]

Install php list. It sends them out so many at a time per hour.

This?
http://www.phplist.com

It has a demo here:
http://demo.phplist.com/lists/admin/?page=send&id=18

But... what with it servers wouldnt recive it as SPAM?
What method does it use?

[verydumb]

It sends them out so many a min, that u tell it how many a min.
So lets say u have a 500 mail limit per hour on ur server, you can tell it to send 1 a min for so many mins and it will keep sending till its done.
Are u worried about ur host thinking its spam? Cause if u are they can see your a forum and most hosts are hip to forums.

[greyknight17]

Is this issue resolved? There's no simple answer to this. SMF 2.0 does have a better way of handling the amount of emails it sends out though as mentioned by karlbenson.