Solved

E-mail bouncing back as undelivered on one domain but not for everyone

Posted on 2016-09-13
3
62 Views
Last Modified: 2016-09-17
We use three e-mail domains, a primary and two aliases. The aliases work OK. Yesterday, all of a sudden, we started getting reports from people trying to e-mail us and getting bounce backs as undeliverable.  I checked my MX records and found that they were pointing to 123-reg.co.uk instead of cluster5.eu.messagelabs.com - not that that would have been an issue, because we then have our 123-reg ones pointing to the correct location, so it was just taking a longer route. I have now corrected our MX record for our domain, it is now pointing directly to messagelabs. I then tested this from my personal account to my corporate account and it worked, so I closed the case down.
This morning I tested it again and found it wasn't working, I also started getting reports from others. I checked the MX record again which I changed as per above and found that it had reverted back!  So, once again I changed it and the e-mail seemed to start working, but it still doesn't work for others.

So, in conclusion, some senders get a bounce back, others don't (my personal e-mail is using outlook.com).

Things I have done -

Checked blacklist for domain - all came back OK
Used MX toolbox - all coming back OK
0
Comment
Question by:fuzzyfreak
3 Comments
 
LVL 42

Accepted Solution

by:
Amit earned 500 total points
ID: 41796648
MX record changes can take minimum 3 days to replicate globally. You should wait for 3-5 days and check again.
0
 
LVL 49

Expert Comment

by:Akhater
ID: 41800161
It would really help to know the exact bounce message
0
 
LVL 4

Author Closing Comment

by:fuzzyfreak
ID: 41803219
Very sorry for not replying sooner. Your answer was spot on, it was indeed a delay in propogation.
Many thanks.
0

Featured Post

Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

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

This article lists the top 5 free OST to PST Converter Tools. These tools save a lot of time for users when they want to convert OST to PST after their exchange server is no longer available or some other critical issue with exchange server or impor…
Read this checklist to learn more about the 15 things you should never include in an email signature.
In this video we show how to create an Accepted Domain 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 >> Ac…
This video demonstrates how to sync Microsoft Exchange Public Folders with smartphones using CodeTwo Exchange Sync and Exchange ActiveSync. To learn more about CodeTwo Exchange Sync and download the free trial, go to: http://www.codetwo.com/excha…

813 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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now