Setting up alternative email clients

General Required Setting

In order to configure alternative mail clients you will need these general settings:

Type of server

Server name

Port

Encryption method

POP3 (incoming mail)

outlook.office365.com

995

TLS

IMAP4 (incoming mail)

outlook.office365.com

993

TLS

SMTP (outgoing mail for both POP and IMAP clients)

outlook.office365.com

587

STARTTLS

 

Tips

If you use Thunderbird and other IMAP clients, you may encounter data throttling errors. This will prevent the initial sending and receiving of email for periods of time. If your IMAP connection to Nexus365 is being throttled you are advised to use the web browser client (OWA), while leaving the IMAP client to complete data synchronisation. The throttling rate is controlled by Microsoft and can’t be changed by IT Services.

For faster sending, set the sendinbackground value to True.

IMAP4 is preferred over POP3 because it is more sophisticated and better supports larger mailboxes with multiple folders. Your mailbox can only be accessed via secure connections. Your mail client must support IMAP through SSL connections.

 

Setting and Changing your outgoing mail (smtp) settings

Outgoing mail settings are the settings which inform your mail client (e.g. Outlook, Thunderbird etc.) which outgoing mail service (known as smtp) to use when you send mail. This is different to the settings for accessing your mailbox for incoming mail.   
We have changed the preferred service since we introduced our Nexus365 mail service using the Microsoft Office365 platform.  We now asking everyone to use outlook.office365.com as their outgoing mail service for all devices. We will be phasing out smtp.ox.ac.uk as a valid service for end user mail during Autumn 2020.  If you are using this service, you need to change the settings in your email client as outlined below.

Instructions according to mail client

  • Apple Mail / Mail on Mac
  • Outlook
  • Thunderbird

Apple Mail / Mail on Mac

Apple provide detailed Mac configuration instructions, Use the IMAP4 settings at the top of the page.

To change the sending server (SMPT) settings in the Mail app on your Mac, choose Mail > Preferences, click Accounts, click Server Settings, click the outgoing Account pop-up menu, then choose Edit SMTP Server List.
 

Server Settings

 
Description     Nexus365

Username
As with Microsoft Teams, the username format is your SSO followed by @OX.AC.UK
(in CAPITALS)
  

 yourSSO@OX.AC.UK
Password     Your SSO password
Host Name     outlook.office365.com
Automatically manage connection settings   tick
(Port)    587 TLS

Outlook

These details from Microsoft  for manually configuring Outlook are provided if you are not using the automated setup facility detailed at https://help.it.ox.ac.uk/nexus365/email-getting-started

Thunderbird

Note

You must ensure that secure connections are selected for both incoming mail and for outgoing mail.

 

Configure the outgoing server

Multiple email accounts can use the same outgoing SMTP server. Therefore, SMTP servers are created separately from email accounts. In the Account Settings dialog, in the left pane, select Outgoing Server (SMTP) from the bottom of the list. There may be an entry in the resulting list that was created when you entered your account details. Either edit that entry or add a new entry.

Description

Nexus365

Server name outlook.office365.com

Port

587

Use name and password

tick

Username

As with Microsoft Teams,
the username format is your SSO
followed by @OX.AC.UK(in CAPITALS)

yourSSO@OX.AC.UK

Use secure authentication

tick

Connection security

STARTTLS

ActiveSync

Some non-mobile clients can use the ActiveSync protocol.

Exchange Web Services (EWS)

You can use this service to enable Nexus365 calendars in Thunderbird as well as adding Exchange functionality to other clients.

A calendaring add-on is available here: https://github.com/ExchangeCalendar/exchangecalendar/

Configure it to use Exchange Web Services (EWS) and this URL, which (when visited and authenticated) can also be used to generate a service for connections: https://outlook.office365.com/EWS/Exchange.asmx

As with other clients, the username format is your SSO followed by @OX.AC.UK (which is case sensitive and should be in CAPITALS: unitxxxx@OX.AC.UK).

Get support


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The central Service Desk is available 24x7 on +44 1865 6 12345

 

If you do not have an SSO account you can use this form to contact the Service Desk