Outlook Web Access (through a browser) Go to https://outlook.office.com/calendar/ Under the month view of the calendar,
You can access a mailbox via desktop Outlook apps on Windows or Mac OS, via the Outlook mobile app, or via any browser. See below for instructions for your device.
Using Outlook on desktop
In Outlook 2016 Note you will need to do this for each computer you use the mailbox on as it stores the signature locally.
Background: Mailchimp allows us to send emails which can appear to be from any sender address.
Mailbox access is controlled by "access groups". These are easiest to manage in Outlook's address book.
Note: You can follow this on your mobile or desktop PC, wherever you have the photo stored that you'd like to use.
Go to https://outlook.office365.com/mail and log in with your account.  Go to Settings 
This is by request to ISD (send them the image) or if the mailbox has an associated role account you can also log in to the OWA for it and add a profile image the normal
You can download a list of mailing list sign ups by:
To set up (per mailbox) Close outlook Open control panel (start menu, type 'control panel'):
Mailboxes are managed by UCL ISD, but requests need to come through [email protected] as the computer reps for the Union.
For Outlook 2016: https://www.ucl.ac.uk/isd/how-to/adding-shared-mailbox-to-field-outloo
All the club and society mailboxes are shared mailboxes which means we do not have passwords for them and they are accessed by adding the mailbox to the users account.  All the Club & Soci