Mastering Office 365 IMAP Settings: A Comprehensive Guide

Created On
February 22, 2023
Access your Office 365 email account using IMAP. Set it up with the provided email settings. Enjoy seamless email communication with ease!

What is IMAP? 

IMAP makes emails truly accessible. It allows you to access your email account from anywhere and from any device. 

When you use IMAP to read an email, it neither downloads the email, nor it gets stored on your computer. Instead, you are only reading your email directly using your ESP or email service provider. That’s why you can check your email from anywhere in the world: your computer, a tablet, your mobile, or a friend’s computer. 

However, you can download an email using IMAP as well. You need to click on the message to download it, however, it doesn't automatically download the attachments. This is why IMAP operates way faster than POP. 

Office 365 IMAP Settings: Set Up an Office 365 Account Using IMAP

Office 365 accounts offer email clients for accessing your Office 365 email account using IMAP. Here are the email settings you need to set up an Office 365 account using IMAP:

1. Microsoft 365/Hotmail/Outlook/

Email Server:

Port: 993

Encryption Method: SSL/TLS

2. MSN


Port: 993

Encryption: SSL/TLS

What to Do If Outlook IMAP Connection Errors?

Your account connection might show email error codes (basic authentication error) if you configure your account as IMAP in various email clients. Although Microsoft is working on to fix the inconvenience, you may try this method to solve the issue: 

  • In your ISP, search for ‘’ and sign in through your Outlook Web App with the affected email address and its password. 
  • Under the ‘Recent activity’ section, choose the ‘Session Type’ from when you recently received the connection error and expand it. 
  • Click on ‘This was me’ to acknowledge the system to authorize IMAP connection. 
  • Once done, try to connect your account via IMAP client again. 

This article on ‘What is the Recent Activity Page?’ will give you a detailed understanding on how you can fix the issue. 

What’s a Rich Text element?

The rich text element allows you to create and format headings, paragraphs, blockquotes, images, and video all in one place instead of having to add and format them individually. Just double-click and easily create content.

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Static and dynamic content editing

A rich text element can be used with static or dynamic content. For static content, just drop it into any page and begin editing. For dynamic content, add a rich text field to any collection and then connect a rich text element to that field in the settings panel. Voila!

How to customize formatting for each rich text

Headings, paragraphs, blockquotes, figures, images, and figure captions can all be styled after a class is added to the rich text element using the "When inside of" nested selector system.

Author’s Details

Sattwik Das

Sattwik is a Digital Marketing professional at Smartlead. He is a dedicated content writer who focuses on juggling words to bring out meaningful content. He is experienced in well-researched and SEO-optimized content creation, content editing, and copywriting for various businesses throughout the globe. His expertise in SEO, SMM, and SMO with a touch of creativity helps businesses grow and maximize their credibility and sales.


Edited by:

Charu Mitra Dubey


Frequently asked questions

General Questions

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Active leads are the contacts you upload in Smartlead, similar to contacts in HubSpot; if you upload 1000 leads to a campaign, they are considered 1000 active leads. If you upload similar leads to a new campaign, they are not considered a “new active lead” as they already exist in our system.

Do you provide mailboxes, or do I need to connect my own?

We don’t offer mailboxes yet. You need to get your own dedicated list of mailboxes using popular providers like Gmail, Outlook, Zoho, and others that exist in the market. Once you get them, follow our detailed guides to connect them quickly.

Do you offer guides and articles on succeeding with cold emails?

Absolutely, one of our most popular guides can be found right here. It's been used by a large percentage of users to go from zero to cold emailing experts. Covering all topics from email infrastructure to copywriting and lead sourcing.

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No, Smartlead has over 200,000 highly reputed mailboxes connected. The advantage you get along with naturalized AI conversations is access to aged domains you will never find in any warmup tool.

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It is used popularly by agencies to automate their entire lead generation process as well as to connect Smartlead to external tools to push and pull data from. You can also connect to 1000s of apps using Zapier.

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