Adding Office 365 to an email client that only supports IMAP, POP3 and SMTP protocols

This FAQ will help you to sync your Office 365 email account with an email client that doesn't support Microsoft Exchange protocols.

Some email clients, such as Thunderbird and Gmail, do not use the Microsoft Exchange email protocol. However, you can still use your Office 365 email account this these clients.


When syncing your Office 365 email account with a client such as Microsoft Outlook, you will be able to use the Microsoft Exchange protocol, however there are some clients, such as Thunderbird and Gmail that don't support the Exchange protocol. Instead, you will need to sync your Office 365 email account by using either the IMAP or POP protocols.

Check out our video on the difference between the IMAP and POP protocols.


Server type Server AddressPortRequires SSL (TLS)
Incoming Mail (IMAP) Server:outlook.office365.com993Yes
Incoming Mail (POP) Server:outlook.office365.com995Yes
Outgoing Mail (SMTP) Server:smtp.office365.com587Yes

You can add your details as you usually would, your Username for both incoming and outgoing servers should be your complete email address: e.g. yourname@yourdomain.com