Hi, I have Postfix setup (almost SuSE default) which allows me to send e- mails from company network. However, when I am abroad, I am unable to send any e-mails through our mail server because of denied relying (in order to avoid usage of our server as spam engine), so usually I am use web mail or change smtp IP of Internet provider in certain area. The question is how to configure Postfix to allow to send e-mail through our domain from any location? I know its possible to setup Postfix smtp authentication with Cyrus, but this is quite complex. Is there any simple yet secure way? Thanks in advance for any suggestion(s) Andrei
andreil1@starlett.lv wrote:
The question is how to configure Postfix to allow to send e-mail through our domain from any location?
One way would be to establish a VPN such that your machine could be virtually on your corporate network, even if dialled-in from the Outer Hebrides. And presumably all machines on your corporate network have access to the mail-server. /Per Jessen, Zürich -- http://www.spamchek.com/ - managed anti-spam and anti-virus solution. Let us analyse your spam- and virus-threat - up to 2 months for free.
Per Jessen wrote:
andreil1@starlett.lv wrote:
The question is how to configure Postfix to allow to send e-mail through our domain from any location?
One way would be to establish a VPN such that your machine could be virtually on your corporate network, even if dialled-in from the Outer Hebrides. And presumably all machines on your corporate network have access to the mail-server.
I think it is easier to set up postfix with sasl (cyrus) than setting up a vpn. I might be wrong. Ulf
Take a look at /etc/postfix/access (and related rebuilding in the default file). Pain to administer, but it works for me. Frank Ulf Rasch wrote:
Per Jessen wrote:
andreil1@starlett.lv wrote:
The question is how to configure Postfix to allow to send e-mail through our domain from any location?
One way would be to establish a VPN such that your machine could be virtually on your corporate network, even if dialled-in from the Outer Hebrides. And presumably all machines on your corporate network have access to the mail-server.
I think it is easier to set up postfix with sasl (cyrus) than setting up a vpn. I might be wrong.
Ulf
have a look at /etc/postfix/master.cf (Could be main.cf been a while since I was mocking around with postfix) specify from which domain name that is allowed to send out mail I.E yourdomain.com Regards Per Qvindesland Frank L. Parks wrote:
Take a look at /etc/postfix/access (and related rebuilding in the default file). Pain to administer, but it works for me.
Frank
Ulf Rasch wrote:
Per Jessen wrote:
andreil1@starlett.lv wrote:
The question is how to configure Postfix to allow to send e-mail through our domain from any location? One way would be to establish a VPN such that your machine could be virtually on your corporate network, even if dialled-in from the Outer Hebrides. And presumably all machines on your corporate network have access to the mail-server.
I think it is easier to set up postfix with sasl (cyrus) than setting up a vpn. I might be wrong.
Ulf
On Friday 03 March 2006 09:56, Frank L. Parks wrote:
Take a look at /etc/postfix/access (and related rebuilding in the default file). Pain to administer, but it works for me.
Not a good idea, though; since it's far easier to abuse a server that way by spoofing the sender. If you want someone Out There to be able to relay mail through your server, then you have to take access from any address or any location; which leaves you in the position of either having to amend your access file constantly (as spammers *will* send faked envelopes to you) - or having to restrict the IPs that can relay through your server (and thus reducing the usefulness of your server as a relay for external users). SASL is easy to set up, flexible to work with, and means that anyone can relay through your server if they authenticate; SMTP AUTH is supported by just about every mail client going; there are very few reasons I can think of for not using it by default. cheers, Gideon.
participants (6)
-
andreil1＠starlett.lv -
Frank L. Parks -
Gideon Hallett -
Per Jessen -
Per Qvindesland -
Ulf Rasch