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Routing Internal Emails Externally

    Question

  • Hi,

    Scenario.

    A large organisation uses POP3 email for all of their offices.  One of these offices has decided they would like to utilise the features of Exchange. Using a POP 3 Connector (POP 3 Grabber) we are now routing this offices emails to exchange accounts.

    The issue comes when user on Exchange trys to reply to a user on POP3, Exchange obviously performs a look up for the POP3 user and states that they do not exist. We need a way for these Exchange users to not perform a look up on Exchange.

    Is there a way to resolve this?

    Wednesday, October 31, 2012 11:04 AM

Answers

  • Hello Dadgey,

    If you want Exchange users can send emails to your POP3 email server, you can create one send connector and set the smart host server as your POP3 email Server.

    Thanks,

    Evan


    Evan Liu

    TechNet Community Support

    • Marked as answer by Evan Liu Friday, November 9, 2012 8:31 AM
    Thursday, November 1, 2012 9:51 AM
  • Hi Paul,

    If POP3 is called contoso.com, you cannot use that way, because Exchange domain is also called contoso.com.

    If you need your Exchange can send emails to POP3 server, you can follow these workarounds:

    <1> Change the smtp domain for your Exchange server, and apply one email address policy on Exchange Server, then it can send emails to POP3 Server.

    <2> Add new accept domain on POP3 server, and add new email address for mailboxes on POP3 Server, then use one send connector route email to POP3 Server with new email address.

    Thanks,

    Evan


    Evan Liu

    TechNet Community Support

    • Marked as answer by Evan Liu Friday, November 9, 2012 8:31 AM
    Thursday, November 8, 2012 1:32 PM

All replies

  • Hello Dadgey,

    If you want Exchange users can send emails to your POP3 email server, you can create one send connector and set the smart host server as your POP3 email Server.

    Thanks,

    Evan


    Evan Liu

    TechNet Community Support

    • Marked as answer by Evan Liu Friday, November 9, 2012 8:31 AM
    Thursday, November 1, 2012 9:51 AM
  • Will this route ALL outgiong email traffic via that SMTP connector?

    For instance if person@contoso.com (exchange) sends to person2@contoso.com (POP3) at the moment the Exchange server will state the user does not exist.  Will this be resolved by the above?

    Paul

    Thursday, November 1, 2012 1:02 PM
  • Hi Paul,

    If POP3 is called contoso.com, you cannot use that way, because Exchange domain is also called contoso.com.

    If you need your Exchange can send emails to POP3 server, you can follow these workarounds:

    <1> Change the smtp domain for your Exchange server, and apply one email address policy on Exchange Server, then it can send emails to POP3 Server.

    <2> Add new accept domain on POP3 server, and add new email address for mailboxes on POP3 Server, then use one send connector route email to POP3 Server with new email address.

    Thanks,

    Evan


    Evan Liu

    TechNet Community Support

    • Marked as answer by Evan Liu Friday, November 9, 2012 8:31 AM
    Thursday, November 8, 2012 1:32 PM