We're currently do bulk email sendings for some of our customers, not spamming.
We have a tool for Windows for this e-mail sending where you can select direct delivery (connects to the emails MX) or use a SMTP-server. We are using direct delivery right now and using 40 threads. Sending 100.000 emails takes a while when the threads get stuck at slow MX's like Hotmail.
Anyway, we have a dedicated Linux server ready.
AMD Athlond 3600
2 GB of RAM
2 x 80 GB SATA (RAID 0, so just 80 GB total)
And ofcourse a gigabit NIC
Our thougts is to set this machine up as a SMTP server so the mailsending program just connects to the SMTP and flushed over all the e-mails at once and let the dedicated server handle this.
My thoughs is that a program like qmail can optimize and speed-up the delivery of the mails even better than our Windows program. Also, qmail stores the email at disk incase of an power-outage.
Anyway, is there any good reading on how to customize a linux distribution to use qmail and setup qmail with rules like only allow a certain IP to connect and deliver e-mails? Anyone with experience?
Searched the forum and I just found someone else that 2-3 years ago wanted to bulksend emails.. But it was fuzzy responses. Hopefully the people here are more expirienced today than a couple of years ago :-)