[SOLVED] cannot send mail to external email add from outlook 2007:Relay access Denied

[tashi]

hello everbody on the forum,I'm facing a problem in trying to send zimbra mail configured on ms outlook 2007 to external email host such as yahoo,gmail etc.I can receive the mail from outside and also send to the add in my own domain but not to outside.from the webmail there's no problem.I'm getting the following errors in ms outlook 2007:

Your message did not reach some or all of the intended recipients.

      Subject:	test
      Sent:	11-09-2009 12:42 PM

The following recipient(s) cannot be reached:

      'xxxx@gmail.com' on 11-09-2009 12:42 PM
            554 5.7.1 <xxxx@gmail.com>: Relay access denied

I've searched for a solution in the forums but to no avail.I guess everything is okay in my mta settings.

[priyadarsanroy]

Make sure you are using SMTP authentication while sending emails. "My Outgoing server (SMTP) requires authentication" option in Outlook.

[atevewr]

I think the problem is the you have to add the senders in the accepted IP list

webmail doesn't give a problem, because you send the mail from the mailserver itself.
When you send it from outlook, your client IP has to authenticate with the mailserver and that is where it should be allowed to send email.

The actual setting would be here (in my 5.0.18 FOSS )
Configuration --> servers --> your server name --> MTA (tab)
MTA Trusted Networks

Hope it helps

[uxbod]

Either solution would work but if you have lots of users, across different networks, then the authentication method is preferred.

[atevewr]

ohhh then i have a doubt ....

i tried the authentication method,when i was deploying my server.
& if i didn't allowed the network in Trusted Networks, my Email clients didn't work
(Thunderbird, Outlook)
yes, i did allowed the outgoing authentication, still it didn't

So i had to Add my whole network subnet in my Trusted Networks

Should i try it again ?

[tashi]

Originally Posted by atevewr

I think the problem is the you have to add the senders in the accepted IP list

webmail doesn't give a problem, because you send the mail from the mailserver itself.
When you send it from outlook, your client IP has to authenticate with the mailserver and that is where it should be allowed to send email.

The actual setting would be here (in my 5.0.18 FOSS )
Configuration --> servers --> your server name --> MTA (tab)
MTA Trusted Networks

Hope it helps

well thanks for the reply but I've already added my originating network to the mta settings and to no avail.Indeed I've added using the following commands:

zmprov modifyServer myserver@domain.com zimbraMtaMyNetworks '127.0.0.0/8  **MyIP**/24'
postfix reload

[priyadarsanroy]

Adding your local IP subnet range to trusted networks is fine, but what about the users that connect via internet and want to use thier email client (Outlook/Thunderbird). For this, setting smtp setting option in outlook/thunderbird to require authentication is the way.

[tashi]

Originally Posted by priyadarsanroy

Make sure you are using SMTP authentication while sending emails. "My Outgoing server (SMTP) requires authentication" option in Outlook.

well thanks for the info..It's solved now...

[tashi]

Originally Posted by atevewr

ohhh then i have a doubt ....

i tried the authentication method,when i was deploying my server.
& if i didn't allowed the network in Trusted Networks, my Email clients didn't work
(Thunderbird, Outlook)
yes, i did allowed the outgoing authentication, still it didn't

So i had to Add my whole network subnet in my Trusted Networks

Should i try it again ?

well mine worked fine as long as you allow the zimbra server ip itself in the MTA settings and the not the whole network..to prevent spam...you can check that via

postconf mynetworks

then allow smtp authentication on the client seems to solve the issue..