other high performance mta like powermta

hi guys,

i am looking for alternatives to powermta. we send out a ton of mails per month and want to move to a professional mta. the alternatives can be in the price range of powermta, it does not have to be free/open source.

i found strongmail but did not get any pricing information yet. i checked ironport, this looks super expensive ("own operating system with optimized asnyc IO/scheduler etc.").

any other products in the same field? a few years ago i had another one but i can not find it again. it was f something mta.

thanks for your help.

greets, stefan

From serverfault $pageUsers[$entry.posts[0].author].name

• There is a very similar question to this one on stack overflow. I would say the same as suggested there: build a good mail gateway using linux + exim or postfix and some other free tools and you will have a very powerful MTA.

  Antoine Benkemoun : +1 no need to look elsewhere...
  From coredump

• You did not specify the actual volume of mail you need to send. Anyway, I think Linux/*BSD with Postfix would be more than powerful enough for you; I have administered nearly a decade some mail servers sending/receiving up to tens of thousands of messages per minute, and the servers do not have any problems handling them. Is that kind of volume enough for you?

  From Janne Pikkarainen

• we send out a couple millions a day. most of our competitors use powermta. it does not have to be free, i know i can set this up with open source tools and some time but i just want to pay a bill and this topic is closed. we send out email campaigns and i need ways to stop campaigns, reschedule them cancel them etc. no clue how this should work with postfix an alike if the mailing is fully queued already.

  From stefan

• PowerMTA has a lot of features like different queues, transferring mail to other servers, pausing queues, all kinds of stuff you can't do with postfix. I use it religiously. I've looked for other alternatives, but could not find anything better.

  strongmail is expensive and ironport is more. (100k).

  adamo : Different queues and stuff you can implement with sendmail.
  From Marc

• Although not exactly what you ask for, Mailgun might be helpful

  From adamo

• I know you're looking for a product rather than an answer, so this response is not really for you, but more for others who may come along and read your question later.

  I've had great success in years past with a tuned sendmail. I built a box designed to handle only the company's mass customer mailings, not their ordinary mail. Specifically, I tuned the initial timeouts so that the 90% of mail that was going to customers who had valid addresses, ready to receive it, got off the box in well under a second; the 10% that couldn't get out inside a second got shuffled into a queue that only got run when there was nothing better to do. The box was for outgoing mail only; the envelope-from and sender-from were both intended to direct bounces to a different server. Submissions were one recipient each.

  It's been some years, so some of this may no longer be valid. But we were handling fairly high volumes (hundreds of thousands of emails in a single go) and the tuning made a huge difference.

  From MadHatter