×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Maintaining mail flow without Contacts or Mail-enabled Users

Maintaining mail flow without Contacts or Mail-enabled Users

Maintaining mail flow without Contacts or Mail-enabled Users

(OP)
The Setup

Our company was acquired by a larger organization and we have migrated all of our user mailboxes to their Office365 tenant and in the process changed primary SMTP to their domain. We have an on-premises Exchange system, which is currently used to handle some shared mailbox and SMTP relay for applications in our data center under the former accepted domains. User mail sent to the former accepted domains are routed to the O365 destination mailbox via contacts or Mail-enabled Users. The on-premises Exchange server is version 2010, which is out of support and my organization would like to turn it off.

Going Forward

I am tasked with turning off the on-premises Exchange system. I originally planned to do this after the former domains are configured to point to Office365 and mail flow for the former domains no longer goes through my data center or the on-premises Exchange server. However, there is some need to keep the former domains on-premises, to be used for outgoing SMTP only. The organization is averse to purchasing an updated Exchange License to handle such a task.

The Ask

Would PostFix be able to replace the Exchange Server’s functionality and direct mail sent to users on one of the former domains to the new destination mailboxes?

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close