Email Issue

[SagarS]

Dear All,

Plesk Panel: 10.4.4
MTA: Postfix

Its a very strange issue, email sent on 14th august received today.Delay is delay=48 days Email header contains below entries:
X-No-Relay: not in my network
X-No-Auth: unauthenticated sender
X-No-Relay: not in my network
X-No-Auth: unauthenticated sender
X-No-Relay: not in my network
X-No-Auth: unauthenticated sender
X-No-Relay: not in my network

Also we are using mailscanner to scan messages.

Can somebody tell me what exactly it is?

Thanks.
Sagar

 

[abdi]

Looks like you have enabled SMTP authentication, despite the sender not being authenticated to send mail through your server. Is that the case?