Hi, On Sun, Feb 5, 2012 at 3:19 AM, <[email protected]> wrote: > Well this is the scenario. > > With 90 customers, having between 5 to 10 email accounts, all of them > sending every day no more than 300 emails/h > giving as result peaks of even 270,000 emails an hour. It is simple math to
That is a lot of email... > know that with only 1 IP for all that outbound will at least start to be > defered. To that you can add the fact that some user do send email as > mailing marketing within the already set limitations but still their lists > (who knows!) might and surely be plenty of haverst emails and spam-traps and > complainers. So in less than a week our main IP is broken. Lowering the If it is "valid" marketing email (the receivers have accepted to receive the email) then I would implement a system that would somehow spread the emails sent to a longer interval of time so you won't hit any limit on the receiving side. But for me it sounds like some of your customers are sending spam? You should not encourage this, even if you make money out of it. There are rules and legislation that you can present to your customers and make them reconsider their marketing approaches. > sending limits bellow 300/h is not atractive to new customers. So you see > the only way to balance this issues is by changing the outbound IP in a > random way or from time to time. If you still want to do this and you are 100% sure that it is legit email your users are sending, here are some approaches you could try: A quick googling revealed a patch that can assign a different ip to your qmail depending on the domain where you sent the email from: http://rno-consultores.com/mail/qmail/qmail-1.03_outgoingips.patch If an IP gets blacklisted you could then quickly change the mappings. This approach would be useful as you could this way also identify the domains that do get blacklisted and investigate why it happens. You need to recompile Qmail to integrate this patch and I have never used it by myself. The other approach is a simple one: AFAIK the address used by Qmail for sending email is defined in /var/qmail/control/me So You could rather easily come up with a script that randomly writes a new hostname to that file and run that script from a cron job. Not sure if Qmail restart is needed after changing the hostname. Regards, Peter --------------------------------------------------------------------------------- Qmailtoaster is sponsored by Vickers Consulting Group (www.vickersconsulting.com) Vickers Consulting Group offers Qmailtoaster support and installations. If you need professional help with your setup, contact them today! --------------------------------------------------------------------------------- Please visit qmailtoaster.com for the latest news, updates, and packages. To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
