Installed ASA5520 the inside end one exchange server to assign it a fixed addresswithin the network, and static (inside, outside) of these servers is mapped to a public network IP (x.x.254.165), the domestic mail send and receive basicnormal, but abroadincoming mail will be blocked.
Because after my mail server sent out the message, send the IP address of the senderSMTP server Outgoing SMTP mail host IP Firewall outside interface IP (x.x.254.166). IP andinnuendo that IP is not the same as an IP.
Not be able to receive e-mail in a foreign country, I would like to ask how to solve?
And I cannot statically NAT to outside interface. This would stop all otyher services as well.
The following is my configuration：
interface GigabitEthernet0/0.265
description ## CT_Internet_10M ##
vlan 265
nameif outside1
security-level 0
ip address X.X.254.166 255.255.255.248 standby 59.61.86.164
!
object network Xiamen_mail_https
host X.X.200.200
object network Xiamen_mail_pop3
host X.X.200.200
object network Xiamen_mail_smtp
host X.X.200.200
object network Xiamen_mail_https
nat (inside,outside1) static x.x.254.165 service tcp https https
object network Xiamen_mail_pop3
nat (inside,outside1) static x.x.254.165 service tcp pop3 pop3
object network Xiamen_mail_smtp
nat (inside,outside1) static x.x.254.165 service tcp smtp smtp
Thankyou！！！
