I install zimbra here at my job, they are working ok, but only for my domain that i have registered at zimbra, for an external domain (like gmail.com) i can`t send any mail, when i try to send i receive the following message:
I think that this is some modification that i do at admins panel, but i already have saw all possible configurations and the problems persist.
Message not sent; one or more addresses were not accepted.
Rejected addresses: firstname.lastname@example.org
someone can help-me?
No one knows my problem???? :(
Are you trying to send mails from the WebUI or an external client ?
I am getting this error via the web portal.
Welcome to the forum.
Please fill in your profile to know which Zimbra version you're using.
Edit for stupidity reason - do not answer any post before (at least) 2 cups of coffee
Check the these settings.
Originally Posted by charon79m
The reason this is happening is because, by default, your postfix MTA is set up to accept mail from anywhere for your internal domain, but it can only relay mail to OTHER domains if you have set up either SMTP authentication or MTA Allowed Networks. This is necessary to prevent your server from being an open relay--that is one that any spammer can use to send messages to the rest of us.
The settings that Bill (phoenix) recommended you check in his link are the settings you need in order for your server to accept messages from your internal domain, to be sent to other places.
I hope this makes the situation clearer for you.