Skip to main content
A
Anonymous
April 12, 2018
Question

Email auto reply Issue

  • April 12, 2018
  • 1 reply
  • 3698 views

Hi

Yesterday we launched an email around 2 pm PST to a very small segment of lead DB.

Around 8:00 pm PST we received around 200 auto-replies in outlook inbox. I tried to search for the domain or email in my DB but I could not find anything related to the email below in my DB. All the auto-replies has the same domain- ".itscom.net'.

Below are the details of errors-

Original Message Details

Created Date:

4/12/2018 3:01:29 AM

Sender Address:

mmcgraw@gso.com

Recipient Address:

museedagri@s00.itscom.net

Subject:

  1. ITSCOM.NET: Email Confirmation


Error Details

Reported error:

550 5.0.350 Remote server returned an error -> 550 #5.1.0 Address rejected.

DSN generated by:

DM5PR02MB2361.namprd02.prod.outlook.com

Remote server:

iron01-mds.s.noc.itscom.net

Is this Marketo delivery issue or some Microsoft outlook issue. I searched the web but could not find any resolution to that. I am not a domain or email deliverability expert so looking for suggestions to resolve the issue.

Thanks,

Vipula

This post is no longer active and is closed to new replies. Need help? Start a new post to ask your question.

1 reply

SanfordWhiteman
SanfordWhiteman
Level 10
April 12, 2018

While this could be due to buggy filtering at O365 -- see this thread from today -- you need to be precise about the domain(s) that's generating the error.

s00.itscom.net isn't the same as itscom.net. They have different MX records and so should be considered completely separate, as if they were apples.com and oranges.com.

In your database, is the recipient @itscom.net or @ the subdomain? Is it possible that you did a bulk load of people at a certain subdomain, and they recently discontinued use of that domain, merging the mailboxes into the parent domain? (This can happen when people upgrade their systems to support more users on the same server.)

A
Anonymous
April 12, 2018

Thanks, Sanford

How can I stop sending to same subdomain or domain?

I want to add the domain or the email in my exclusion list but I am not able to find the name in the DB.

Can you please suggest any resolution to this issue. Does this kind of things impacts deliverability of the emails in futire?

I have to do another batch of the email but I am not sure if I should take some steps before the execution.

Thanks,

Vipula

SanfordWhiteman
SanfordWhiteman
Level 10
April 12, 2018

I am not able to find the name in the DB.

Then the domain is probably being aliased somewhere within O365.  This can make things very hard to track.

You don't see just the mailbox names (museedagri in this example) in your DB?

Terms & ConditionsAccessibility statement

Loading footer...