On 2008-01-06 at 07:38 -0600, John Schmerold wrote:
> I work with a church that sends 60,000 emails per year. This isn't a
> huge number, however it's big enough that from time to time they send
> a large number of emails to a few of the ISPs in town. This gets the
> church put on the suspect list.
>
> It seems like there should be a way to say "if we have delivered 50
> emails to this IP address in last hour, hold what we have in the queue
> and wait an hour before sending more emails"
>
> Any ideas?
The big ISPs are likely to catch trickled through volume. Five years
ago I had to deal with spammers who had compromised customer machines
and were sending small numbers of spam per machine per day.
You'll find your time more productively spent investigating what it
takes to establish a reputation as a known-good sender. Various email
providers have published guidelines explaining what it takes to run a
list which is considered "well managed" and how to get it whitelisted.
http://mail.google.com/mail/help/bulk_mail.html
http://help.yahoo.com/l/us/yahoo/mail/postmaster/
http://postmaster.info.aol.com/
http://postmaster.msn.com/
http://www.unitedonline.net/postmaster/
http://security.rr.com/
Separately, there are independent whitelists which you should
investigate, some commercial but many not. Try starting with dnswl.org
and look at the others which they link to:
http://www.dnswl.org/
http://www.dnswl.org/others
Regards,
-Phil
