Hi!
I have the same problem. I already have active either SPF and DKIM to this account. But, if in the "Sender" is a valid email account, and the "Recipient" is a valid email account for the same domain or from the another domain in the same machine, the message is delivery without autentication.
How you can see, who is generate this message is an IP address that isn't mine. (ceil.webhostingireland.ie - 91.210.235.40 )
How can it is possible? Is there any kind of solution for this problem?
Code:
Delivery Event Details
[B]Event[/B]: success
[B]Sender User[/B]: -remote-
[B]Sender Domain[/B]:
[B]Sender[/B]: [EMAIL][email protected][/EMAIL]
[B]Sent Time[/B]: Aug 19, 2015 4:19:04 AM
[B]Sender Host[/B]: ceil.domain.ie
[B]Sender IP[/B]: 91.210.235.40
[B]Authentication[/B]: localdelivery
[B]Spam Score[/B]: -1.2
[B]Recipient[/B]: [EMAIL][email protected][/EMAIL]
[B]Delivered To[/B]: [EMAIL][email protected][/EMAIL]
[B]deliveryuser[/B]: sisxxxa4
[B]deliverydomain[/B]: sisxxxa4.pt
[B]Router[/B]: virtual_user
[B]Transport[/B]: virtual_userdelivery
[B]Out Time[/B]: Aug 19, 2015 4:19:04 AM
[B]ID[/B]: 1ZRtuN-0006nX-QX
[B]Delivery Host[/B]: localhost
[B]Delivery IP[/B]: 127.0.0.1
[B]Size[/B]: 6.89 KB
[B]Result[/B]: Accepted