Am 30.07.2014 11:27, schrieb Andrew Beverley: > On Wed, 2014-07-30 at 11:12 +0200, li...@rhsoft.net wrote: >> Am 30.07.2014 11:06, schrieb Andrew Beverley: >>> I am looking for somebody who can provide consultancy to help me tune >>> some Postfix installations. Can anybody provide recommendations? >> >> tune *what* context > > Mail delivery. Lots of relatively small individual messages, being > submitted locally using the sendmail command, delivered across the > internet to a variety of locations.
the "variety of locations" are not under your control * rate-controls * greylisting bulk email is not that easy, that's why companies exists which are focused on that job with a large infrastructure of sending clusters and reputation at large providers >>> Incidentally, I am submitting using the sendmail command, rather than >>> SMTP (against the advice of the tuning README) - how much difference is >>> this likely to make? >> >> for the submit process of your application a big >> one because it spawens for each mail a process > > Okay, thanks, I'll try this first. I didn't want to spend a lot of time > changing it, if it was only going to deliver a small performance > benefit. as said it is only a small part of the whole game spit a lot of messages in the queue means that from the application side the sending process is done, deliver bulk mail to the final RCPT is a different story >> if you want to tune the whole process including the >> message reaches the final RCPT you have to do a lot >> of things besides just screw around on your server > > Hence the request ;-) > > I'll see how I get on with the SMTP submission, but it would be useful > to know what consultancy is available "out there" anyway. for *really* large amount of mails just forget it to send them out in bulk from a single IP and accept that they are not temprary rejected by the destination one start: https://support.google.com/a/answer/81126?hl=en well, and the same applies for any large destination
