In Add New Account settings page, Select ‘Manually configure Server settings or Additional Server Types’ » Click Next
Select Internet Email in the page that appears and Click Next to input the User Information.
Your Name – Preferred Display Name
E-mail Address – Provide your Zoho Email Address
Account Type – Select POP3 for enabling POP
Incoming mail Server – pop.zoho.com
Outgoing mail Server – smtp.zoho.com
User name – Your Zoho Email Address
Password – Zoho Account Password You may require Application Specific password to set up the account in other devices, if Two Factor Authentication is enabled for your account.
Select ‘Remember Password’
Click ‘More Settings’, for advanced configuration detail. In the dialog that appears, select 'Outgoing Server'.
Select ‘My outgoing server (SMTP) requires authentication’
Select the option ‘Use same settings as my incoming server’
If this option is not set, you may get an error 'Authentication Required' or 'Relaying Disallowed' error.
The Relaying Disallowed Error may also occur when the 'email address' is provided incorrectly and does not match the email address set up for the account, whose credentials are provided in the email client.
Select ‘Advanced’ to specify the port details for the POP and SMTP servers.
Incoming Server (POP3): 995
Select ‘This server requires an encrypted connection (SSL)’
Outgoing Server (SMTP): 465
Select ‘SSL’ from the drop down for encrypted connection
Select ‘Leave a copy of messages on the server ‘ if you need it in Zoho mail also. Refer 'POP Delete settings' for deletion behavior in Zoho Mail.
Click Ok to Save the settings and exit.
Select 'Test Account Settings' to check the settings for Incoming and Outgoing Servers. Make sure, you have a working internet connection, with permissions for Outlook to access the Internet.
Once the Incomin/ Outgoing tests are successfully completed, Outlook displays the dialog as below.
Select Close and Finish to save the configurations and exit.