Jay,
I really loved this VERH patch. That's exactly what I need, to create a
custom "To" field and perhaps a "click here to unsubscribe" field.
To send 150,000 messages, do you send a single message with all the
recipients or do you send multiple messages (multiple queues)?
And another dumb question: did you apply any other patch to get concurrency
level of 509 or you did that with Qmail as-is?
Thanks a lot!
_______________________________________________
Henrique Pantarotto
SysOp Site São Paulo
Terra Networks Brasil S/A
A Internet mais sua do que nunca
Tel: (11) 5505-5728 r.316/238 ICQ: 6934285 IT: henpa
[EMAIL PROTECTED]
-----Original Message-----
From: Austad, Jay [mailto:[EMAIL PROTECTED]]
Sent: quinta-feira, 5 de outubro de 2000 21:33
To: 'Brett Randall'; Henrique Pantarotto; qmail
Subject: RE: To send 500,000 messages
How personalized are they? Are you just putting the persons email address
in the body of the message? the VERH patch for qmail will let you do this.
We use this patch and a concurrency level of 509 and it puts out about
150,000 messages every 15 minutes. I run DJB dns with 100MB memory reserved
for the cache so the mailservers won't have to wait long for queries.
Overall, I'm really impressed with how fast qmail and djbdns work. I can
saturate one of our DS3's by just sending out mail. :)
Jay
-----Original Message-----
From: Brett Randall [mailto:[EMAIL PROTECTED]]
Sent: Thursday, October 05, 2000 7:48 PM
To: Henrique Pantarotto; qmail
Subject: RE: To send 500,000 messages
> 1) I have searched this mailing-list and I understood that Qmail can
> handle this demand very nicely, right? Are those patches for "high
> load servers" really necessary or is the default qmail distribution
> (with concurrencyremote set to 100 or something) enough?
They're there for a reason...of course, these presume that your link can
handle a greater concurrency.
> 2) Whats the best way to send the 500,000 mails? Send a single
> message with 500,000 destination addresses or to send 500,000
> messages, one for each email address?
One message with 500,000 destination addresses. Could you imagine opening up
500,000 smtp connections to a single server? Uh uh.
> 3) If I really need to send 500,000 different messages (for custom
> text inside the message) to the users, will this stress Qmail or will
> it handle it okay?
qmail won't have a problem. But how big is your server? Your server will
likely cack it if you send 500,000 messages from another machine. My best
advice? Generate a template with metatags in it (like <name>, <company>),
have a database ready, and run it through a perl script that calls
qmail-inject.
If you don't need to customise messages, consider using ezmlm-idx. It will
remove addresses that bounce after 14 days if they can't be resolved, it is
easy to administer, users can subscribe and unsubscribe at whim, it can me
moderated so messages can't be sent to the mailing list unless you authorise
them to be...
/BR
Manager
InterPlanetary Solutions
http://ipsware.com/
