External users can't send mail to their own domain

[alex]

Thanks for the reply.
I ended up using the kolab2 smtp server for these users. I did not want 
to enter the other smtp servers as trusted because I don't trust comcast 
and verizon!
Thus far, Kolab2 is running exceptionally well.

Bernhard Reiter wrote:

>On Wednesday 20 October 2004 05:13, alex wrote:
>  
>
>>I have a kolab 2 server setup and it is working very well for all users
>>in the office. I have two external users who cannot send mail to the
>>domain. The users have accounts on the kolab server. 
>>    
>>
>
>This is almost like them being internal. :-)
>
>  
>
>>They are using
>>their own smtp server, but their imap account is on the kolab server.
>>    
>>
>
>What about using the kolab server as their smpt server,
>this might solve the issue.
>
>  
>
>>Below is the message I get in the Mail delivery failed email:
>>
>>This message was created automatically by mail delivery software.
>>
>>A message that you sent could not be delivered to one or more of its
>>recipients. This is a permanent error. The following address(es) failed:
>>
>>  don at mydomain.net
>>    SMTP error from remote mailer after RCPT TO:<don at mydomain.net>:
>>    host mail.mydomain.net [4.35.170.39]: 554 <alex at mydomain.net>:
>>    Sender address rejected: Invalid sender
>>    
>>
>
>Kolab2 wants to offer some protection against 
>other people forging email addresses.
>So usually you need to insert email authenticated if it has
>an internal email address. Another possibility is to make
>that smpt server trusted (add it in the services tab).
>  
>

-- 
If you have any questions, please call me at (941) 423-3076.

Thank you,

Alex Chejlyk
SwiftNet Computer Systems, Inc.
http://www.swiftnetcomputers.biz

***************************************************
This email may contain confidential material.
If you were not an intended recipient, 
please notify the sender and delete all copies.
We may monitor email to and from our network.

***************************************************