On Sun, Jun 5, 2011 at 1:05 PM, Rony <[email protected]> wrote:

> Mails are going as required and only to those in the recipient_access
> list as required. Now if an employee has left and his/her entries are
> removed from the postfix box as well as the ISP server mail accounts,
> the Outlook Express mailer can still send mails as that non-existent
> user. What I found through more reading of docs is that my OE accounts
> can send mails even without authentication as I don't have
> smtpd_auth_enable and the LAN is in my mynetworks parameter. Not a big
> problem as it is local and under control and the OE account can be
> deleted for that user. However, why is the ISP allowing this unknown
> user which postfix is relaying when I have everything set in the
> smtp_auth_ part of postfix? Suppose there is a flaw in my settings,
> shouldn't the ISP's mail server reject those mails when the username and
> password do not match with their list? That user has been deleted from
> their server.
>
>
>
If you add a new user to postfix and DO NOT add this user to ISP. Is it
possible to send mails as this new user using OE?

Amish.
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