[Mailman-Users] spam issues

[Kærast]

On Thu, 19 Feb 2009 10:32:23 +0200
Ciprian Matei COSMA <ciprian.cosma at me.com> wrote:

> Hello all,
> 
> I just started a mailing list using mailman and it seems that most
> of the emails sent get in spam at gmail and yahoo.
> Are there some setyoings that need to be done in order to avoid this  
> ( most of may subscribers are yahoo and gmail).
> 

If msn/hotmail is also affected then join the msn postmaster reporting
scheme <http://postmaster.msn.com/Services.aspx>

In a very rough order the things you need to do are:

Get copies of the headers of the emails as received at gmail/yahoo to
see if there is anything obvious (there won't be, but other
providers do add headers to explain why an email is considered spam)

Use http://www.blacklistalert.org/ to see if your mail server is
blacklisted anywhere, and if it is fix it (either by going through the
delisting process or by using an smtp smarthost if you should be)

Make sure you have correct reverse dns set up for your mail server.

Set up SPF for your domain (correctly, setting it up incorrectly can
make things much worse)

Don't send spammy emails

Don't use Base 64 encoding

Don't sign people up with permission

Ensure there is an obvious way for people to unsubscribe from your
email lists


-- 
Alice