SMTP Server

Hi I have just installed my first MikroTik router and i am having issues sending mail from my exchange server now. I can receive email fine but cannot send. I think i am missing something. here is a print out of my NAT section

jan/02/1970 03:26:20 by RouterOS 5.24

software id = UC0B-1STK

/ip firewall filter
add action=accept chain=input comment="default configuration" disabled=no
protocol=icmp
add action=accept chain=input comment="default configuration"
connection-state=established disabled=no
add action=accept chain=input comment="default configuration"
connection-state=related disabled=no
add action=accept chain=forward disabled=no dst-port=25 protocol=tcp
add action=accept chain=input comment="default configuration" disabled=no
protocol=tcp
add action=accept chain=input connection-state=established disabled=no
dst-address=192.168.0.15 dst-port=443 protocol=tcp src-address=0.0.0.0
src-port=443
add action=accept chain=input disabled=no dst-address=192.168.0.113
in-interface=ether1-gateway protocol=rdp src-address=
add action=accept chain=input disabled=no dst-address=192.168.0.5 protocol=
tcp src-address= src-port=2198
add action=accept chain=input disabled=no dst-address=192.168.0.15 dst-port=
25 in-interface=ether1-gateway port="" protocol=tcp src-address=
77.107.230.0/26 src-port=25
add action=accept chain=input disabled=no dst-address=192.168.0.15 dst-port=
25 in-interface=ether1-gateway port="" protocol=tcp src-address=
5.135.34.112/28 src-port=25
add action=accept chain=input disabled=no dst-address=192.168.0.15 dst-port=
25 in-interface=ether1-gateway protocol=tcp src-address=5.135.69.0/25
src-port=25
add action=accept chain=input disabled=no dst-address=192.168.0.15 dst-port=
25 in-interface=ether1-gateway protocol=tcp src-address=23.21.125.241
src-port=25
add action=accept chain=input disabled=no dst-address=0.0.0.0 in-interface=
ether1-gateway protocol=tcp src-address=IP Address/24
add action=accept chain=input disabled=no dst-address=0.0.0.0 in-interface=
ether1-gateway protocol=tcp src-address=IP address/24
add action=accept chain=input comment="Accept established connections"
connection-state=established disabled=no
add action=accept chain=input comment="Accept related connections"
connection-state=related disabled=no
add action=drop chain=input comment="drop invalid connections"
connection-state=invalid disabled=no
add action=accept chain=input comment=UDP disabled=no protocol=udp
add action=accept chain=input comment="From our Lan" disabled=no
in-interface=ether2-master-local src-address=192.168.0.0/24
add action=accept chain=input comment="Allow limited pings" disabled=no
limit=50/5s,2 protocol=icmp
add action=drop chain=input comment="Drop excess pings" disabled=no protocol=
icmp
add action=log chain=input comment="Log everything else" disabled=no
log-prefix="Drop Input"
add action=accept chain=foward disabled=no dst-address=192.168.0.5
add action=accept chain=foward disabled=no dst-address=192.168.0.1
add action=accept chain=foward disabled=no dst-address=192.168.0.15
add action=accept chain=input disabled=yes dst-address=192.168.0.15 dst-port=
25 in-interface=ether1-gateway protocol=tcp src-port=25

The external IP address are the mail provider we use.

Thanks
Jonny

Edit your post and wrap RouterOS tags around the export.