Outgoing SMTP being blocked

RouterOS General
1

I have 2 servers inside the network that need to connect to a smtp server outside the network. I need to know what setting I should put in the mikrotik to allow these 2 servers to send out smtp.

these are the rules that are setup in the firewall for nat

Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat out-interface=Internet action=masquerade

1 chain=dstnat in-interface=Internet protocol=tcp dst-port=3389
action=dst-nat to-addresses=192.168.0.103 to-ports=3389

2 chain=dstnat dst-address=209.40.226.124 protocol=tcp action=dst-nat
to-addresses=192.168.0.250 to-ports=0-65535

3 chain=dstnat dst-address=209.40.226.124 protocol=udp action=dst-nat
to-addresses=192.168.0.250 to-ports=0-65535

4 chain=dstnat dst-address=209.40.226.122 protocol=tcp action=dst-nat
to-addresses=192.168.0.222 to-ports=0-65535

5 chain=dstnat dst-address=209.40.226.122 protocol=udp action=dst-nat
to-addresses=192.168.0.222 to-ports=0-65535

6 chain=dstnat in-interface=Internet protocol=tcp dst-port=34200-34203
action=dst-nat to-addresses=192.168.0.103 to-ports=34200-34203

7 chain=dstnat in-interface=Internet protocol=tcp dst-port=5900
action=dst-nat to-addresses=192.168.0.249 to-ports=5900

No filter rules or Mangle rules

2

Port 25 is most likely being blocked by your ISP

3

nope isp has everything open for us. we a t1 coming in. It was working before we replace the router we have with this one.

4

can you ‘telnet smtpserver 25’ from the internal server?

if not, then disable your rules and retry.

is the default gateway correct?

what error are you getting? is it a SMTP error code or what?

can you trace route to the external smtp server?

5

Where is you masquerade rule?