Hi all and thx for the further answer to my question
I have a exchange 2013 cu 16 with many DnsConnectorDelivery in queue with resend.
Dns name of the smtp server are wrong.
the recipient of this domain static.vnpt.vn doesn't exist.
So why i have this kind of log on my server :
Sender id 89468461461468XXXX@mylocaldomain
from <>
IP Source : 255.255.255.255 SCL -1
to xxxxxxxxx@static.vnpt.vn
Do you believe i have a trojan smtp on my LAN which it send mail to world ?
Regards
Stas