?
Solved

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

Posted on 2011-03-24
3
Medium Priority
?
436 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 24

Accepted Solution

by:
Brian B earned 1500 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

Has Powershell sent you back into the Stone Age?

If managing Active Directory using Windows Powershell® is making you feel like you stepped back in time, you are not alone.  For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why.

Question has a verified solution.

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

A list of top three free exchange EDB viewers that helps the user to extract a mailbox from an unmounted .edb file and get a clear preview of all emails & other items with just a single click on mailboxes.
This article will help to fix the below error for MS Exchange server 2010 I. Out Of office not working II. Certificate error "name on the security certificate is invalid or does not match the name of the site" III. Make Internal URLs and External…
In this video we show how to create an email address policy in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Mail Flow…
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…
Suggested Courses

752 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