Hi, i have a problem with the configuration of notification email, when i try to insert the SMTP host, user, psw and port, the system give me this error :
501 5.1.7 Bad sender address syntax
Note : the smpt host is an smpt of my network, not google or other, and it isn’t an smtp of localhost. It is in my lan.
Thanks…
is it a problem that does not concern zammad?
@Charburner do you know something about it?
Did you set a FQDN in Settings > System?
What is the current sender address for notification emails in Zammad?
In the FQDN field i had set the localhost ip, besides i have disable the account email, so i have enable only the notify email (that is set with Local MTA because SMTP not work 
)
So, your sender address for email notification is noreply@localhost_ip? This should be the reason why you get the error message from Sendmail/Postfix. Numeric domains are not allowed by default.
but i would use SMTP not postfix, this solve postix problem but i wouldn’t noreply@localhost_ip as notify email but another like noreply@system.it
and another problem is : I do not have an optimal configuration of postfix because I thought I did not need but in the attempt to solve the problem I installed it roughly configuring it.
Did you use a valid FQDN while trying to activate the SMTP configuration?
Your SMTP host could reject a numeric domain just like the local MTA does.
You might want to have a look at the mailserver logfiles to see what is happening when Zammad tries to connect.
Solved, was a FQDN problem…
Thanks to log of server i found the problem.
Thank you so much. 
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