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mLine 16:
Line 16: − INCOMING MAIL.+ − OUTGOING MAIL.+ − MY SME server ---> MY ISP's SMTP server ---> World+ + + + + + + + + + + + + + + − +
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It worked perfectly. Here is my litte map:
It worked perfectly. Here is my litte map:
====Incoming Mail====
Yahoo mail --> MX record check --> Mail1.no-ip.com (port25) --> My SME
Yahoo mail --> MX record check --> Mail1.no-ip.com (port25) --> My SME
server (port 2525).
server (port 2525).
====Outgoing Mail====
My SME server ---> My ISP's SMTP server ---> World
Works perfectly.
Works perfectly.
{{Note box|By using this approach your SME Server thinks that anything coming in from the outside world via port 2525 is in actual fact coming from within your LAN on port 25, so there is much less security applied.}}
====Alternative iptables Approach====
I've added the following lines to /etc/rc.d/rc.local
iptables -A PREROUTING -t nat -p tcp --dport 9993 -j REDIRECT --to-port 993
iptables -A PREROUTING -t nat -p tcp --dport 4465 -j REDIRECT --to-port 465
Cut-paste example for port 2525 redirection:
iptables -A PREROUTING -t nat -p tcp --dport 2525 -j REDIRECT --to-port 25
====Alternative iptables Approach====
===ISP is blocking port 80===
===ISP is blocking port 80===
Same deal except different ports
Same deal except different ports
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[[Category:Howto]]
[[Category:Howto]]