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What limits speed of email sending with dedicated server used as mail server?
I'm trying to understand what limits the speed that email can be sent out on a dedicated server used as a mail server.
What kind of speeds do you get? What hardware do you have?
I've been told:
throttle to 1 per second
throttle to 2 per second
others say they don't throttle at all and can blast out 10,000 in 1 hour.
what is the biggest limiting factor? bandwidth, bandwidth, portspeed?
Any information would be appreciated.
There are three main limits:
2. Software that deliberately throttles outgoing email
3. Your hosting provider shutting down your server for spamming
A modern server with even a 10mbit uplink should be able to do thousands of emails per minute.
Depends on the mail server you are running...[exim, qmail, etc.]
What mail server is best...[exim, qmail, etc.]
We won't be sending huge amounts of email.
Typically what might happen is that 2-3 webmasters with customer lists of 5,000-10,000 might decide to send out at the same time. 30,000 emails at 1 per second could take 8 hours.
Any mail server can handle far more than one email per second; it's a question of how it's configured.
Personally, I hate all mail servers, but with a special loathing reserved for Sendmail and Exchange.
Qmail, Postfix, or Exim are relatively good bets. If you have CPanel you'll have Exim, and Plesk uses Qmail. I use Postfix on servers I set up manually.