skip to content

You need to remove in your email settings after you migrate to Exchange Online. You won't be able to send email if you don't do this

Exchange Online operates with email addresses in the form of You need to change any references to your old address in your email app and anywhere else this email address exists.

Remove references to the address in your email app settings, for example, "Always send outgoing email from". If you don't do this, you might:

  • not be able to send emails
  • send emails which people can't reply to

Hermes should only be mentioned in your server settings (for example,, as the incoming mail server) and that your email address is always set as not


1. Go to and Details.

2. Check that the following fields refer to your email address, and edit them if necessary:

  • Email address field =
  • @cam delivery address field:
    The migration process should automatically update the Lookup delivery address, but you should check this after your migration has run. It should have updated to something like – for technical reasons, this does not use your email address.

2. If the “reply-to” field in your email app refers to, change it to

3. Check that none of the other fields refer to If necessary, change them to

4. If your preferred outgoing email account is set to, change it to

Outlook desktop application

  1. Select Outlook > Preferences and Accounts.
    Your email login needs to refer to Hermes until you actually migrate, but it should be removed from the account description.

  2. Go back to Preferences and check that your signature doesn’t mention Hermes.
    You will have to set up your signature again when you add your new Exchange Online account, but changing it in advance will help to ensure that people you regularly correspond with start using the correct address.


Apple Mail

  1. Go to Preferences and check that the email address from which all your messages are sent is set to
    This setting remains active after adding your new Exchange Online account and if it is still set to you will not be able to send email after you have migrated.

  2. Check that both the preferences for the Hermes account and for the program overall have been set correctly.

Any aliases on the account

  1. Mail > Preferences, then Accounts.
  2. Select the Hermes account then Account Information.
  3. Select the Email Address pop-up menu, choose Edit Email Addresses. If an alias has been set in order to send email as select the alias then Remove (looks like a minus sign).

Sending preferences for Apple Mail itself

  1. Choose Mail > Preferences, then Composing.
  2. Scroll down to Send new messages from and change the account to (or just set it to send from the currently selected account).

iPhone – remove Hermes Profile

  1. Open the Settings app
  2. Tap General
  3. Scroll down and select Profile (If Profile does not appear in your Settings, you do not have a Profile installed)
  4. Tap the Hermes profile
  5. Tap Remove Profile (you may need to enter your device passcode)
  6. Tap Remove.



  1. Select Tools > Account Settings then your Hermes account. Check that your email address is not Hermes and that your 'reply to' address is either blank or and that your signature doesn’t mention Hermes.

Phone padded  Service status line: (01223 7)67999
Website  Sign up for SMS/email status alerts
Website  Read major IT incident reports

UIS bITe-size bulletin

A regular newsletter aimed at the University's IT community, highlighting service and project news from UIS.

Sign up >

Latest news

Your University GoogleDrive: 20GB quota limit from December 2022

19 January 2022

Google is replacing its G Suite for Education model licensing model in October 2022. As a result, there will be a new limit of 20GB on personal GoogleDrive spaces provided with G Suite@Cambridge accounts. If your GoogleDrive usage exceeds 20GB after 1 December 2022, your University account GoogleDrive will become read-only until your usage is brought below 20GB.

Moodle offline for upgrade during 06:00–12:00 on Tuesday 11 January

10 January 2022

Moodle will be unavailable from 06:00 to 12:00 on Tuesday 11 January while we upgrade it to version 3.9. During the upgrade, you won’t be able to view or upload sessions on Panopto because access is managed via your Moodle login. Assessment Moodle, ICE Moodle and Clinical School Moodle users will be unaffected. An outline...

HEAT authentication method changing to Azure on 13 January

7 January 2022

We're changing the authentication method for the IT service management system, HEAT, to Microsoft Azure on Thursday 13 January 2022. What is changing? You should continue to use the same URL for accessing HEAT: However, the 'Sign in' screen you'll be directed to will look slightly different,...