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cfrogjump
n00b
Joined: 17 Apr 2002
Posts: 20
Location: Utah
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 Posted: Thu Dec 19, 2002 5:16 am Post subject: Postfix Problem |
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Ok here's my problem. I am currently running courier-imap, postfix, and squirrelmail. I can receive mail fine. I can send mail using squirrelmail. Everytime I try and send mail from a remote host I get the following error:
| Code: | 554 <xxxx@xxxxx.org>: Recipient address rejected: Relay access denied
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Does anyone have any idea how to setup postfix to relay mail for authorized users?
Thanks,
cfrogjump |
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pem725
n00b
Joined: 26 Sep 2002
Posts: 68
Location: Tucson, AZ USA
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| Posted: Thu Dec 19, 2002 6:00 am Post subject: |
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Have you checked out:
http://www.postfix.org/faq.html#relaying
Ordinarily I wouldn't merely suggest you read the FAQ but it might offer more insight into your problem than me merely guessing at all of your parameters. Also, I suspect that the FAQ may be more accurate.
I tackled postfix just recently on several machines - some networked in a subnet and all relayed through a caching proxy server that ran postfix. The relay was easy to setup but then again I had a domain name through dyndns. Perhaps you might want to investigate that option:
see http://www.dyndns.org
Very handy. HTH.
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Cheers,
Patrick
Do the community a favor and answer a few stranded messages. I'm off to answer one now...thanks to gentoo! |
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phunkphorce
Tux's lil' helper
Joined: 22 Nov 2002
Posts: 145
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| Posted: Thu Dec 19, 2002 9:06 am Post subject: Easy |
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By default Postfix only relays mail that comes from the same domain as the machine's or from machines that are in the same network. Well, to be more precise (copied from Postfix's documentation):
| Quote: |
# By default, Postfix relays mail
# - from trusted clients whose IP address matches $mynetworks,
# - from trusted clients matching $relay_domains or subdomains thereof,
# - from untrusted clients to destinations that match $relay_domains
# or subdomains thereof, except addresses with sender-specified routing.
# The default relay_domains value is $mydestination.
#
# In addition to the above, the Postfix SMTP server by default accepts mail
# that Postfix is final destination for:
# - destinations that match $inet_interfaces,
# - destinations that match $mydestination
# - destinations that match $virtual_maps.
# These destinations do not need to be listed in $relay_domains.
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It's something they call security 
As the first reply to your post, the topic of 'mail relaying' is widely covered in the FAQ/documentation of Postfix so you'd better have a look at it. Otherwise, have a look at the parameter relay_domains in the /etc/postfix/main.cf
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cfrogjump
n00b
Joined: 17 Apr 2002
Posts: 20
Location: Utah
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| Posted: Thu Dec 19, 2002 7:05 pm Post subject: |
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I have read most of the docs on the postfix site as well as what I could find here. I also understand why they have it setup the way they do.
The reason that I want to be able to have authorized user send mail is because I offer email account to my friends and family. It works great through squirrelmail but if someone wants to use evolution, kmail, or even outlook to check and send email it doesn't work. They can check mail fine but can't reply or send new mail, save to people who are also on my system.
Does anyone have any suggestions on how to set it up this way? or Am I going to have to switch to something like qmail or use sendmail instead? |
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phunkphorce
Tux's lil' helper
Joined: 22 Nov 2002
Posts: 145
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| Posted: Thu Dec 19, 2002 10:27 pm Post subject: |
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| cfrogjump wrote: | The reason that I want to be able to have authorized user send mail is because I offer email account to my friends and family. It works great through squirrelmail but if someone wants to use evolution, kmail, or even outlook to check and send email it doesn't work. They can check mail fine but can't reply or send new mail, save to people who are also on my system.
Does anyone have any suggestions on how to set it up this way? or Am I going to have to switch to something like qmail or use sendmail instead? |
No, dont' worry, you won't have to switch to qmail or anything else. All you have to do is tell Postfix to accept mails for the domains of the persons who will be using your mail server. For example, if one of them is using yahoo.com and another one is using whatever.net, then configure postfix so that it accepts emails with destination yahoo.com and whatever.net. As I said in my previous post, have a look at the relay_domains parameter in your /etc/postfix/main.cf, where you can specify to which domains your machine will accept mail. You can configure it the easy way, saying that it should take any email sent to yahoo.com and whatever.net, or be more precise (and secure!!) and specify the ip of those machines so that postfix recognizes them whenever they're trying to send and relays the mails.
Again, let's have a look at Postfix's documentation:
| Quote: | # - from trusted clients whose IP address matches $mynetworks,
# - from trusted clients matching $relay_domains or subdomains thereof,
# - from untrusted clients to destinations that match $relay_domains
# or subdomains thereof, except addresses with sender-specified routing.
# The default relay_domains value is $mydestination. |
Just follow these instructions, you shouldn't have any problem with it with something like this:
| Code: | relay_domains=yahoo.com, whatever.net, $mydestination
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Good luck!
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...please stay there! |
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Alowishus
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Joined: 18 Apr 2002
Posts: 22
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Networking & Security
