Restrict access to mailboxes by IP range

Discussion in 'General' started by muekno, Nov 23, 2023.

  1. muekno

    muekno Active Member HowtoForge Supporter

    I like to block some IP ranges accessing certain mailboxes by IMAP.

    That means if someone tries accessing a mailbox from i.e. IP Range 115.26.12.0/26 it should be blocked.
    Reasson is the New Outlook.

    Regards Rainer
     
    muekno, Nov 23, 2023
    #1
  2. till

    till Super Moderator Staff Member ISPConfig Developer

    There is no function to block a specific IP range for a mailbox. You can only block IP ranges for the full server by e.g. using UFW firewall.
     
    till, Nov 24, 2023
    #2
    muekno likes this.
  3. muekno

    muekno Active Member HowtoForge Supporter

    I assumed. The background is the "New Outlook" I think you read about. I do not want that MS will access my my mailbox users from Microsoft Azure Cloud wit stolen credentials. See https://www.heise.de/news/Neue-Outlook-App-BSI-sieht-Cloudzwang-kritisch-9536892.html but it should be possible that Azure users can send mails to my users.
    OK I will go deeper in the FSW Firewall to see how that can be configured.
    Regards Rainer
     
    muekno, Nov 24, 2023
    #3

Share This Page