Am 04.06.2011 06:03, schrieb Goutam Baul: > Dear List, > > > > We are running our mailing system using Postfix > (postfix-2.0.16-14.RHEL3). We need to send communications to our > shareholders (around 15000 of them) using the mailing system. If we > simply send the mails using things like phpmailer etc. then we fear that > > > > 1) 1) There could be an issue with the server performance as > because these many numbers of mails will be pushed to the queue at the > same time. This can, however, be addressed by tweaking the mail sending > script carefully. > > 2) 2) Some of the receiving domains like yahoo etc. might > think that we are creating spam and blacklist us. > > > > We don’t have any idea on how many mails should be safe to push per hour > so that our servers don’t face the risk of getting blacklisted. Is there > any threshold value? > > > > Would anyone advice us on the correct approach that we should take? This > is going to be a regular feature in our operations and we need to device > a good solution. Any help please. > > > > With regards, > > > > Goutam > > > > >
15000 news mails are no problem with recent postfix on modern hardware so perhaps you should upgrade, anyway configure slow transports to i.e yahoo etc , use their whitelist featuring etc -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria