Hey Peter, thanks for the answeres.
About been permisive with spam, thats never something we do. We
actually suspend and then ban the users that by using our services
causes spam complaints or RBL listings (which demonstrates that the
list they use is harvested). We ZERO tolerant to spam. Although the
emailing usage is a growing issue.
I already read the link you share, but that is only if you have
multiple domains assigned to a singular and different ip to each one.
This is not the case.
Hopefully some one around may share a solution.
Thanks a lot.
On dom 05/02/12 6:23 AM , Peter Peltonen [email protected]
sent:
Hi,
On Sun, Feb 5, 2012 at 3:19 AM, 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
[2]
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
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