Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Exchange cannot receive external mail

Posted on 2004-04-22
Medium Priority
Last Modified: 2012-08-14
Have an Exchange 2000 server running in a Win2K AD environment - employee left 2 days ago so my supervisor changed the administrator password - now...we cannot receive any external email - I do not know if they are related - here is a bounce message:

Your message cannot be delivered to the following recipients:

  Recipient address:
  Reason: Remote SMTP server has rejected address
  Diagnostic code: smtp;550 Requested action not taken: mailbox unavailable
  Remote system: dns; (TCP||42772||25) (SMTP service ready)

I am not an Exchange admin - that was the guy who left - any idea how to fix this?
Question by:mrsmileyns
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
  • 2
  • 2
  • +1

Accepted Solution

kendingo earned 2000 total points
ID: 10889366
Could the SMTP service be running as a different administrator and password? The exchange admin may have setup the service to run as a specific account and now that account is gone.

Just a thought.


Author Comment

ID: 10890373
that is what i was thinking - my boss figured it out - there was another appliance in front of the exchange - a spam firewall that needed the passwd changed to access the exchange server - working ok now - but you were on the right track - should i give you the points or delete the question?

Expert Comment

ID: 10891546
When a key IT person leaves, it's not a bad idea to have someone come in and do a security audit.--especially if the person left under questionable circumstances.  Good idea to make sure diaster recovery and prevention are up to date, and no back doors were left behind. Changing passwords is a great place to start, though.
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.


Expert Comment

ID: 10891567
if you would like to give me the points that would be cool, i am not worried about the points only trying to help people out like i have been helped out here before.

Author Comment

ID: 10891580
yep - that is what we have been checking for the past couple of days - fun fun fun

Expert Comment

ID: 11828354
Im using exchange 2000, I cannot receive any external mail.
What's going on and can anybody give a solution.

Expert Comment

ID: 11829733
this question is already closed. You need to post your own question, giving specific details about your problem, and the experts will try to help you.  

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

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

PHP contact form that lets the user to contact the company through email contact form. A button is fixed at the bottom of site, on clicking a new window will open where a user can send the email.
Read this checklist to learn more about the 15 things you should never include in an email signature.
This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory. NOTE: For Outlook 2016 and 2013 perform the exact same steps. Open a new email: Click the New email button in Outlook. Start typing the address: …
Many of my clients call in with monstrous Gmail overloading issues with Outlook. A quick tip is to turn off the All Mail and Important folders from synching. Here is a quick video I made to show you how to turn off these and other folders in Gmail s…
Suggested Courses

722 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