relay as any email they want ?

Discussion in 'Installation/Configuration' started by dgsdgs, Mar 5, 2012.

  1. dgsdgs

    dgsdgs New Member

    I got a problem with some users who uses my ispconfig server as a relay for domains that are not hosted on the server ex. [email protected], can send/relay mails from [email protected], I think this is a big problem, because it means that the user can relay as any address they want, as long as they are authenticated, I would like that users only are allowed to send email from the emailaddress they use to authenticate against the smtp server. Is this possible ?

    I have found some thing about a postfix option called "reject_authenticated_sender_login_mismatch" and "smtpd_sender_login_maps", but i can't get it working.

    I hope someone in here can help.

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