Results 1 to 2 of 2

Thread: limit users to their e-mail address

  1. #1
    Join Date
    Jul 2014
    Posts
    2
    Rep Power
    1

    Default limit users to their e-mail address

    Hi

    My systems:
    Release 7.2.6_GA_2926.UBUNTU8 UBUNTU8 FOSS edition.
    Release 8.0.7.GA.6020.UBUNTU12.64 UBUNTU12_64 FOSS edition.


    My problem:
    To the System registered users can set any from address.
    "testaccount01@mydomain.com" can send an mail as "zimbrasupport@zimbra.com"
    The "sending mails from all address" in the functions tab is not set.

    This becomes more and more a problem if a users password gets hacked in some way.
    The spammer then uses the account to send mails with any "from" address.
    Sometimes only the string bevore the @ gets changed (xyz@mydomain.com, yxz@mydomain.com, ...)
    Sometimes the whole address gets changed.
    This is realy funny if the mailq is 10k mails long and you search the account from which the mails come from.


    Is there any way to limit the sender address?
    The user "testaccount01@mydomain.com" should only have the posibility to send as "testaccount01@mydomain.com".

    yogg

  2. #2
    Join Date
    Sep 2011
    Location
    Miami
    Posts
    44
    Rep Power
    4

Similar Threads

  1. Limit for users / domains
    By pjsmith in forum Administrators
    Replies: 2
    Last Post: 02-09-2010, 10:47 AM
  2. My mail users can replace sender's email address.
    By Minor in forum Administrators
    Replies: 7
    Last Post: 11-24-2009, 01:28 AM
  3. Message Size Limit For individual users
    By shankark in forum Administrators
    Replies: 1
    Last Post: 10-16-2009, 12:18 PM
  4. Attachment limit for users
    By aldo carranza in forum Administrators
    Replies: 0
    Last Post: 05-14-2009, 09:32 AM
  5. Replies: 0
    Last Post: 08-19-2008, 04:28 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •