Hello 1 - configure your DNS SPF record 2 - Use DKIM to sign your emails 3 - Use a mailing lists software ( LISTSERV Mailman ... etc )
We have been in trouble with gmail yahoo hotmail before doing this after configuring Postfix and Bind like this we do not have blacklist troubles with those email providers Hope this help Le 04/06/2011 06:03, Goutam Baul a écrit :
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
