In article <1iaf9fj.4wocll1nup6hmN%news02@swid.co.uk.invalid> , Steve W wrote:
> Ewa Burnecka <E.Burnecka@mareon.com.pl> wrote:
>
>> can anyone knows how to configure postfix to successfully deliver e-mails to
>> hotmail account. My e-mails are accepted by their servers but do not get to
>> mailbox at all, or a treatet as spam.
>>
>> Ewa
>
> Check out http://postmaster.live.com/Services....enderSolutions
>
> Specifically "Smart Network Data Services" at
> https://postmaster.live.com/snds/index.aspx

Hotmail (Microsoft) uses the "Report spam" button on the Hotmail
application to determine how "spammy" your IP address is.
I run a bunch of Mailman lists for a relatively "not technical"
population. A fair number of them are too lazy and/or inept
to unsubscribe from mailing lists they're not interested in any more.
Instead, they use the report spam button. Hotmail apparently
doesn't take into account the fact they have been receiving
non-spam from the same IPA and MAIL FROM address for years.

Also, when a Hotmail user comes back from vacation and finds
5000 messages waiting, and three quarters are spam, they'll
mark it all spam to dump it all. These two behaviors keep
my Hotmail spam fraction hovering around 0.5% despite no
real spam actually making it through the lists.

The Hotmail service is "free" and "free email" users apparently
tolerate false positives. I have started advising these people
that if they want reliable email they have to go somewhere
reliable, but of course they don't want to hear it.

If Hotmail isn't delivering messages from your users, it could
be your IPA's spam fraction is too high.


Cameron