• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 429
  • Last Modified:

Unable to Receive Email from One Sender Domain

My email domain is unable to receive any emails sent from one particular mail server/domain.  This looks to be like a configuration problem on the sending end, but if there is any (reasonable) change I can make on our recieving end that would allow these emails to be received, I would make the change here.

I need someone to interpret the SMTP conversation in the attached file and provide configuration change necessary to alow us to recieve emails.  Alternatively, if no change on the receiving end is reasonable, what configuration change needs to be changed on the sender end.  Don't know what their mail server is , but an SMTP conenection to it sends "220 gateway.senderdomain.lan ESMTP Postfix"





SMTP-Log.txt
SMTP-Log.xls
0
Student7
Asked:
Student7
  • 4
  • 3
1 Solution
 
bevhostCommented:
Your server is annoucing its capabilities after the EHLO command.
Listed is one called
250-X-EXPS GSSAPI NTLM
The other end sees this and responds with the command
X-EXPS GSSAPI

This is a prorietory command used only by exchange servers meaning that in this case both ends are exchnage servers.  

See
http://technet.microsoft.com/en-us/library/bb123786(EXCHG.65).aspx

They are attempting some sort of authentication which is failling.

0
 
bevhostCommented:
0
 
Student7Author Commented:
Thanks for the response bevhost.  Looks like you're on the right track.  What is the solution?
0
Free tool for managing users' photos in Office 365

Easily upload multiple users’ photos to Office 365. Manage them with an intuitive GUI and use handy built-in cropping and resizing options. Link photos with users based on Azure AD attributes. Free tool!

 
bevhostCommented:
from that last article ....

"
So I see that problem was in Default Mail connector - I left only AnonymousUsers in PermissionGroups on Default MAIL connector to prevent other, restarted MSExchangeTransport service and VOILA!

Btw, can anybody explan why sender's server tried send with Auth GSSAPI  first (and only)? Why not anonymous?

"
0
 
Student7Author Commented:
That receive connector isn't just used by anonymous users.
0
 
Student7Author Commented:
The linked solution also does not provide the method to make the suggested configuration change.
0
 
bevhostCommented:
try this.
Go into System Manager

Open servers, your server, protocols, smtp.
Right click default smtp
goto access tab
click authentication.
untick all but anonymous.

Of course if you are using SMTP authentication for your own users, this will break it.

0

Featured Post

Creating Active Directory Users from a Text File

If your organization has a need to mass-create AD user accounts, watch this video to see how its done without the need for scripting or other unnecessary complexities.

  • 4
  • 3
Tackle projects and never again get stuck behind a technical roadblock.
Join Now