Solved

Cannot send mail to certain addresses using Mac Mail client w/ Exchange 2003 IMAP

Posted on 2011-03-24
3
426 Views
Last Modified: 2012-05-11
Hello,

We have one user who insists on using the Apple Mail client to connect with our Exchange 2003 server using IMAP.  The problem we are running into is that she is unable to send to certain email addresses/domains.  Comcast, AOL, and lesser domains.  We can send to them fine from within our company using her account on MS Outlook.

She connects from outside using imap.  Any thoughts/suggestions would be greatly appreciated!

Thank you in advance!
0
Comment
Question by:eracare
  • 2
3 Comments
 
LVL 23

Accepted Solution

by:
Brian B earned 500 total points
ID: 35209949
Check her mail settings to make sure she is sending back through your server. If she is sending direct or through her own ISP, the mail could be blocked because her system is not authorized to send on behalf of your domain.

If that's not it, please post the notice she is getting. That will help us troubleshoot.
0
 

Author Comment

by:eracare
ID: 35212073
Hi,

I figured out the issue. IMAP is mapped to a different IP, and when she sends mail it is going out the IMAP IP.  The domains in question are using a reverse lookup and it fails.

Thank you for your response.
0
 

Author Closing Comment

by:eracare
ID: 35237292
Although this was exactly right, it got me looking in the right direction.  Thank you.
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Apple Updates 3 32
Outlook Configure Out Of Office with Error cannot find server. 6 60
Exchange Server Send connector and DNS Round Robin ? 6 39
exchange 7 17
Read this checklist to learn more about the 15 things you should never include in an email signature.
This article explains how to install and use the NTBackup utility that comes with Windows Server.
Users will learn how to set proper sequence settings, scale images, paste attributes, add transitions, fades, and music. Open up Final Cut Pro 7 and Create a new Project: Set the Sequence Settings. a) Click File > Easy Setup > Format > Apple ProRe…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question