Majordomo: Mailing Lists’ Basic Use

The email address of Majordomo is

Instructions for mailing list administrators can be found here

We have received complaints to IT-Helpdesk that some messages sent through the Majordomo lists have been flagged as spam by mistake.

You can avoid this by adding the addresses of those mailing lists you want to make sure you receive to your inbox to the Safe Recipients list in OWA.

When you send messages to Majordomo lists, use Plain Text formatting in your messages. Check the settings of the e-mail software you are using to see how it happens.

Nowadays most of the e-mail apps send messages with HTML formatting by default. Majordomo is not compatible with the format and the message fails to be delivered.

    Subscribing to and unsubscribing from Majordomo lists

    Type the command in the body of the email message.  Majordomo does not process the  subject field  of the message, so there is no need to write anything in it. Majordomo interprets all the text in the message, including any signature, as commands, so please check your email message and remove any unnecessary text before sending it.

    To subscribe to and unsubscribe from a mailing list, send an email with the appropriate commands to the Majordomo list server at

    • Subscribe with the command
    subscribe list-name 
    • Unsubscribe with the command
    unsubscribe list-name
    • The administrator (owner) of a list can be contacted at

    Please note that in some cases, the list administrator may have chosen to use an additional confirmation for registration. In this case, the subscription to the list must be confirmed separately with a reply message. Follow the instructions provided in the message.

    Majordomo is very particular about the address format. The addresses for subscribing and unsubscribing must be identical.

    Sending commands to the list server

    Actions related to the management of mailing lists, such as subscribing and unsubscribing, are made by sending email commands to the Majordomo list server at

    Write the command in the body of the message. The list server does not process the  subject  field. Majordomo interprets all the text in the message, including any signature, as commands, so please check your email message before sending it.

    Majordomo cannot read messages in HTML. In your email settings, check that the message is sent as plain text.
    Please note that HTML is the default message format in Outlook and other modern email programs.

    Outlook: File > Options > Mail > Compose messages > select Plain Text in the drop-down menu.


    OWA: Settings (cog in the top right corner) > Email > Compose and reply > select Plain text in the drop-down menu.

    You can send several commands in the same message, one command per row. If the command is longer than one row, you can break it up with a backslash (\), e.g.

    subscribe reallylong-listname \

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