Re: postfix issue...

On Thu, 2010-03-04 at 11:49 -0800, bruce wrote:
hey

I know this isn't an OS question, but I'm lost!!

New to configuring Postfix, with a few questions about how to configure Postfix.

I'm running Fedora, with Postfix, from the basic yum install. The
Sendmail process has been stopped.

I can easily send a basic test mail from the cmdline. Ie:

mail foo@xxxxxxxxx
subject: blah
test
.
Cc:

works with no issue. However, the email on the gmail end, is in the
Spam folder, which is to be expected.

As I understand the different articles I've seen, Postfix can be
configured to allow me to authenticate emails, to in effect,
relay/send them using the authenticaion of a valid email user/passwd
from a valid gmail account. (or from my own isp user/passwd). This
would then allow the emails to be in the Inbox folder!

I've seen a great deal of online articles, but I'm still confused as
to exactly what's required to make this happen.

I know that the main.cf, as well as the transports/sasl-passwd files
have to be modified. I'm confused as to whether certs are actually
required, or if TSL is/is not required....

So, I'm trying to figure out exactly what config files have to be
modified, as well as what has to be inserted in the config files.

If I could see the confi files from someone who's actually gone
through this process, I could more quickly get my head around what
I've screwed up!
----
configuration on the postfix server probably factors little into the
decisions made by a 'spam' filter but generally, you can check the mail
headers of any e-mail in a spam folder (like on Gmail) to see if it has
the 'scoring' which will tell you exactly which factors led to it
scoring to a number that caused it to believe it was spam.

At this stage, I simply will not accept mail from any smtp server whose
forward & reverse DNS don't match. So if you are sending me e-mails from
server mail.example.com you better have a reverse DNS address that tells
me that your ip address points to mail.example.com. Perhaps if Gmail
accepts that type of e-mail, it gets a really big scoring penalty where
pretty much any other factor will push it over the top and be marked
spam. You could also try to use things like SPF or domainkeys to up the
trust factor of your server.

Whether you used TLS to authenticate to your mail server in order to
send is not too likely to affect the spam scoring and there's little
reason to duplicate the excellent documentation over at postfix.org's
web site which tells you what to do to implement TLS & SASL
authentication, how to generate certificates, etc.

Craig


--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.

--
users mailing list
users@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines

Relevant Pages

  • Re: Looking for Linux based anti-spam system
    ... Also you'll want to use postfix rather than sendmail. ... You want to install spamassassin. ... doesn't work well without at least 10,000 spam and good mail to train on. ... Now the clients login to server using the name and password you've created ...
    (alt.linux)
  • Re: postfix issue...
    ... New to configuring Postfix, with a few questions about how to configure Postfix. ... Spam folder, ... I'm trying to figure out exactly what config files have to be ... I simply will not accept mail from any smtp server whose ...
    (Fedora)
  • Re: [opensuse] 11.4 - Postfix Spam filter Steps to configure with Exchange server 2010
    ... The first and most important step is not the actual configuration but the ... even if the sending server abuses all rules how to set up a proper ... mailserver compared to the amount of spam that might still slip through if you ... Postfix is set up as a relayhost in exchange. ...
    (SuSE)
  • Re: [SLE] IMAP HowTo (was re: POP Mail HOWTO?)
    ... This is the Postfix program at host junkbox.OURHOUSE. ... "Junkbox" is the hostname of the machine on which I've been trying to configure this domestic server, and "OURHOUSE" is a made-up 'domain' that I inserted when it appeared that I had to insert something. ... I guess that would have been in postfix config, but I'm miles away from that box right now, so I can't check. ... Maybe it was a default that I didn't change in some config file, because it was not mentioned in Anders' instructions. ...
    (SuSE)
  • Re: [SLE] Spamassassin (spamd) on 9.2 - SOLVED
    ... > Set in yast to use amavisd with postfix. ... Postfix's config passes the ... If you want spam scanning, ...
    (SuSE)