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Monday, June 17, 2024

How to Enable and Configure POP-IMAP In Exchange 2013

open Services.msc – Set IMAP and POP services to automatic and start it

Its recommended to stop using POP services and configure only IMAP


or Use Powershell

Using PowerShell –

Start-Service MSExchangeIMAP4; Start-Service MSExchangeIMAP4BE
Set-Service MSExchangeIMAP4 -StartupType Automatic; Set-Service MSExchangeIMAP4BE -StartupType Automatic


If you are having a wild card certificate make sure you run the below commands. so that POP and IMAP services can connect to this FQDN

To be Run on all CAS Servers

Set-ImapSettings -ExternalConnectionSettings "mail.azure365pro.com:993:SSL","mail.azure365pro.com:143:TLS" -X509CertificateName mail.azure365pro.com
Test-ImapConnectivity –ClientAccessServer Servername -Lightmode -MailboxCredential (Get-Credential)

Also Run

Get-ReceiveConnector "*\client Frontend*" | Set-ReceiveConnector -AdvertiseClientSettings $true -Fqdn mail.azure365pro.com

(if you want clients that connect through the server with FQDN mail.careexchange.in to be able to look up their own SMTP setting.


Restart Pop and IMAP services to Take effect.

Restart-Service MSExchangeIMAP4; Restart-Service MSExchangeIMAP4BE

Outlook 2016 Client Settings for IMAP to work.




Satheshwaran Manoharan
Satheshwaran Manoharanhttps://www.azure365pro.com
Award-winning Technology Leader with a wealth of experience running large teams and diversified industry exposure in cloud computing. From shipping lines to rolling stocks.In-depth expertise in driving cloud adoption strategies and modernizing systems to cloud native. Specialized in Microsoft Cloud, DevOps, and Microsoft 365 Stack and conducted numerous successful projects worldwide. Also, Acting as a Technical Advisor for various start-ups.

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  1. I am not able to send emails to the outside organization from IMAP account.

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

    Subject: Aliuddin
    Sent: 8/20/2014 1:29 PM

    The following recipient(s) cannot be reached:

    ali on 8/20/2014 1:29 PM
    Server error: ‘550 5.7.1 Unable to relay’

  2. I have exchange 2013 2 Mailbox servers and 2 CAS i need to enable pop3 for internal users only, i can’t change internalconnectionsetting to Set-POPSettings –internalConnectionSetting {mail.contoso.com:995:SSL}
    and it points to mailboxserver 1 only

  3. One of our user has ” 2 mailboxes which are being used in an application for triggering emails using IMAP4. One mailbox is working fine, however other is throwing login failure error. We’ve the exact same settings from Exchange standpoint. We’re running Exchange 2013, CU13, Version 15.0 ?(Build 1210.3)?. Unable to configure outlook for the account using imap settings”


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