How to Allow SMTP/POP3 only in NAT for some local IP`s

RouterOS General
1

Need to give only SMTP/POP3 access to the internet to some local IP`s and deny all over traffick
How to please

2

When setting masquarade you have an option to set protocol (set it to TCP) and then option to set port is available (you neet 25 and 110)

3

I need to do this

Local - 192.168.0.0/24

IP - 192.168.0.100 - 192.168.0.250 Should have access only to SMTP and POP3 on internet
IP - 192.168.0.0 - 192.168.0.99 - full access

If i do like you sad it will work for all IP range but i need to do it for some Ip`s only

4 
/ ip firewall filter 
add chain=forward src-address-list=all_services action=accept comment="allow 192.168.0.x full access" disabled=no 
add chain=forward protocol=tcp dst-port=110 src-address-list=mail action=accept comment="allow pop3 to 192.168.0.y" disabled=no 
add chain=forward protocol=tcp dst-port=25 src-address-list=mail action=accept comment="allow smtp to 192.168.0.y" disabled=no 
add chain=forward src-address-list=mail action=drop comment="drop all other from 192.168.0.y" disabled=no

/ ip firewall address-list 
add list=all_services address=192.168.0.x comment="full access list" disabled=no
add list=mail address=192.168.0.y comment="mail access list" disabled=no
5

Thank you

6

These links (1,2).
will help you to understand/use MikroTik firewall.