#5.3.0 smtp;530 5.3.0 Invalid ehlo/ehlo domain

Posted on 2007-07-26
Medium Priority
Last Modified: 2012-08-13
Having trouble email one of our customers, it seems to be isolated to this one customer and I have checked DNS, Spamhaus and everything is good there. Any thoughts on the errors message below?
We run Exchange 03 sp2 and it happens even if you try to email one person or a group of people over at the other company...

Your message did not reach some or all of the intended recipients.

      Subject:      Testing email
      Sent:      7/26/2007 10:30 AM

The following recipient(s) could not be reached:

      customeremail@domain.org on 7/26/2007 10:30 AM
            The message cannot be delivered due to a configuration error on the server. Please contact your Administrator.
            <Mymailserver.domain #5.3.0 smtp;530 5.3.0 Invalid ehlo/ehlo domain.>
Question by:dsc18
LVL 104

Accepted Solution

Sembee earned 2000 total points
ID: 19575486
If your server is announcing itself as domain.com then you will get errors. Similarly if the server is announcing itself as anything .local
You can see what the server is announcing itself as by telnetting to port 25

telnet servername 25

To change what the server announces itself as you need to go in to ESM, Servers, <your server>, Protocols, SMTP. Right click on the Default SMTP VS and choose Properties. Click on the tab Delivery and then Advanced. Change the FQDN to match what the server is known as on the internet - this will be what your DNS and reverse DNS entries are for. Don't bother with Check DNS, simply apply/ok out.


Expert Comment

ID: 20294373
Forced accept.

EE Admin

Featured Post

Concerto Cloud for Software Providers & ISVs

Can Concerto Cloud Services help you focus on evolving your application offerings, while delivering the best cloud experience to your customers? From DevOps to revenue models and customer support, the answer is yes!

Learn how Concerto can help you.

Question has a verified solution.

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

The article covers five tools all IT professionals should know about, as they up productivity by a great deal!
If something goes wrong with Exchange, your IT resources are in trouble.All Exchange server migration processes are not designed to be identical and though migrating email from on-premises Exchange mailbox to Cloud’s Office 365 is relatively simple…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video shows how to quickly and easily deploy an email signature for all users in Office 365 and prevent it from being added to replies and forwards. (the resulting signature is applied on the server level in Exchange Online) The email signat…
Suggested Courses

864 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