Office 365 SMTP Settings & Configuration Including POP3 and IMAP Settings

Office 365, also known as Microsoft 365, this comprehensive suite includes various features, such as email hosting services, and is a compilation of Microsoft's software and services under the Office 365 brand. This cloud-based platform provides subscribers with diverse productivity software and associated services.

For business users, Office 365 offers:

  1. Microsoft Office Package, including MS Word, PowerPoint, Excel, Outlook, and OneDrive.
  2. Flexibility to use these tools across iMacs, PCs, mobiles, and tablets.
  3. OneDrive cloud storage with a capacity of up to 1 TB.
  4. Regular feature updates and free upgrades.
  5. Social Networking Services integration, such as Yammer, Exchange Server, SharePoint, Skype for Business, and Office Online.

The Office 365 SMTP settings enable users to send emails from their email client without directly using the Microsoft 365 webmail. Alongside SMTP settings, this post shares POP3 and IMAP settings, guiding users on how to find the SMTP server in Outlook 365 and providing a step-by-step configuration guide for Office 365.

Benefits of Microsoft Office 365 include enhanced data and device protection with Microsoft Defender, organized workflow with OneNote, data backup and security features, seamless collaboration with MS Office package, and ad-free email for business organizations.

Email protocols, such as SMTP for sending emails, IMAP for email retrieval across multiple devices, and POP3 for receiving emails on a single device, play crucial roles in Office 365 configurations.

The Office 365 SMTP settings are as follows:

  • Server name:
  • User address: User’s Office 365 address (e.g.,
  • Port: 587 (with TLS)
  • Encryption method: SSL/TLS
  • SMTP authentication: enabled
  • Authentication: Your password
  • Sending limit: 10,000 emails/day

Additionally, the post explains how to find the SMTP server in Outlook 365 and provides a step-by-step guide for Office 365 configuration, including DNS record updates and Smart Host or Server entry.

For POP3 settings, the configuration is:

  • Server name:
  • Port: 995
  • Encryption method: SSL

And for IMAP settings:

  • Server name:
  • Port: 993
  • Encryption method: SSL

The post also includes instructions on configuring Outlook for Microsoft 365 and addresses frequently asked questions, covering topics such as SMTP server for Outlook, testing SMTP, POP3, or IMAP settings, and modifying email client settings in Office 365. Compatible email clients for Office 365 configuration include Microsoft Outlook, Apple Mail, Thunderbird, and mobile apps like iOS Mail and Android's Email app.