Home > FAQs > What do I do if I see this message while configuring Office 365 Inbox sync in Vtiger? (Microsoft - retrieval using IMAP4 protocol failed for message number)

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Which are the different methods to set up My Mailbox? How can I set up auto-forwarding in the inbox? How can I set up a two-way sync in the inbox? How can I add a group mailbox? How can I delete My Mailbox? How can I delete a group mailbox? How can I edit group mailbox settings? Which folders are available in the inbox? What is My Mailbox? What is a group mailbox? Where can I see the emails sent to and received from my customer? Can I have a default name for Group Mailbox? What happens when a default name is set for a Group Mailbox? Where is the Delete option in Inbox mails? How do I fix the issue where I'm asked to reauthorize my inbox access in Vtiger CRM after changing my password? How can I verify my inbox in Vtiger CRM if I've enabled auto-forwarding but haven't been verified by the email client? How to setup a forwarding rule to redirect incoming emails to the preferred address? Why are newly created records showing the source as 'Gmail - inbox' even though two-way sync for inbox is configured? Why does the emails sent from the inbox are not delivered to the recipient's inbox? How do I map more than three folders? How do I access Inbox in Vtiger CRM? How do I set up automation based on emails received in my inbox? What are the benefits of using Vtiger inbox?

What do I do if I see this message while configuring Office 365 Inbox sync in Vtiger? (Microsoft - retrieval using IMAP4 protocol failed for message number)

If you receive email alerts from Microsoft saying, Retrieval using the IMAP4 protocol failed for the message number XXXXX while configuring Vtiger Inbox using Office 365 server credentials, then your mailbox is configured only with POP.

To resolve the issue, you need to disable the POP and enable the IMAP option in your mailbox settings.

Vtiger supports IMAP protocol only. So enabling IMAP will help you avoid these emails in your inbox.
Follow these steps to enable the IMAP option email settings:

Sign in to the Office 365 exchange using your email ID, phone, or Skype details to go to your mailbox.
Click Recipients > Mailboxes to display the Office 365 User Mailbox.
Look for Email apps under the Mailbox tab.
Click the Manage email apps settings link.
Select the required Display name to view the settings for email apps. The Manage Settings for email apps window will open.
Enable IMAP by clicking on the toggle button.

You will not see the above message again.
Note: Screens may vary depending on the version of Office 365 you use.

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What do I do if I see this message while configuring Office 365 Inbox sync in Vtiger? (Microsoft - retrieval using IMAP4 protocol failed for message number)

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