How to Fix SMTP Errors during Office 365/Outlook integration

How to Fix SMTP Errors during Office 365/Outlook integration

Introduction

When trying to integrate your Office 365/Outlook email with your Zoho CRM you may receive a STMP error (refer to screenshot for error message example).


This error message can be resolved by following the steps below:
  1. Log in to Microsoft 365 admin center and go to Users > Active Users.
  2. Select the user whose email ID is used to integrate with Zoho CRM, click Mail in the side pane that pops out.
  3. Click Manage Email Apps in the Email apps section.
  4. Select Authenticated SMTP setting if it is not already selected. If the option is already selected, unselect and select again.
  5. Click Save Changes. 
If you access Outlook/Microsoft 365 via GoDaddy, please use these instructions instead.

 For more information about this error, click here. 

If this issue continues to persist, it is most likely because the client is using a 3rd party hosting for Office365/Outlook and we will need to get the following details from their server in order to integrate their email using the "Other Mail" option.

For IMAP Integration:



For POP Integration :