email address validation

[furina]

Hi,

My problem is strange. My manager changed his name and email address in outlook but his credentials same and sent email to me. Mail delivered to me. How can i prevent this?
My zimbra version 8.7.1_GA_1670.FOSS and i tried this article but it is not worked. (https://wiki.zimbra.com/wiki/Rejecting_ ... _addresses)

Thank you.

[phoenix]

Hi,

My problem is strange. My manager changed his name and email address in outlook but his credentials same and sent email to me. Mail delivered to me. How can i prevent this?

I don't really understand what you're trying to 'prevent'. If the login credentials have not changed then he still has an email account on your server and will still be able to send you mail, there's nothing wrong with that.

[furina]

Problem is credentials belongs to him but from address and name belongs someone else. (For example general manager)

[mpeltier]

Hi,
Using 8.7.x, enforcing a match between from address ans sasl username like described in the wiki works for us (the client machine should not belong to the trusted networks however, cf /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf).
https://wiki.zimbra.com/wiki/Enforcing_ ... ername_8.5
Mathieu

[furina]

Hi Mathieu,

Thanks for your reply. Your article was worked but other users can not send mail when everythings is true. Actually sometimes sent somtimes not Now turn back to old.