How to Change Default Sender Address












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            Notice: The following information applies only to mailboxes in the central university M365

            If you have multiple addresses, so-called aliases, associated with your email mailbox, you
            sending address you will use as the default.




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            * Why do I have multiple addresses for one mailbox?
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            For example, if you are a student at one faculty and also have a job at another, it may ha
            have multiple email addresses (aliases) but only one mailbox. This is because, in this cas
            and the second faculty share one common university cloud environment (tenant), and you are

            as the same person with the same account.




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            * What does this imply?

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            You can freely use both addresses according to your needs, but messages sent to these addr
            found in one common mailbox.


            However, there can only be one default outgoing address. You can change it on a one-time b
            a specific address in the From or Sender field of your email client. If you do not do this

            address will be used.

            Set default outgoing address the one you use most.


            Notice: Do not set the default address before each use; it may take several hours for the 
            effect.





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            * How to set the default address?
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            1.In your web browser, go to the page:

              https://whois.cuni.cz/ [ URL "https://whois.cuni.cz/"]


            2.In the upper right corner of the page, click on the Sign In button.
            3.On the following page, insert your username and password that you use for CAS and click 



            4.From the side menu Options, select the option My personal data and contacts.



            5.In the Contacts tab, you will see an overview of your assigned email addresses. The curr

              sending address is marked with a red Microsoft 365 symbol. If you see multiple email add
              of them has a button for change, by clicking this button you can make the change and set
              the new default.


              Keep in mind that the change is not immediate, but it may take several hours.