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MailServer Problem

N

nik

n00b
Joined
Jun 5, 2004
Messages
9
hi,
am running mdaemon, with the duc client enabled and im able to send mail, but i cant recieve anything. am not sure whether my mx exchangers are set right. or is it some config error? apache and my ftp are working fine. theyve blocked port 80 so im running on 6880. any ideas why im unable to recieve mail? another thing....right now the servers running dmz`ed so i dont think its a problem with my firewall or router....im not sure whether i gotta set the mx exchanger to digitechuae.com or mail.digitechuae.com.
digitechuae.com is a port redirect to 6880 so i dont think it would work anyways.

any help?
 
If the serving computer is beind nat then I would fowarded port 25 to the computer even if it is in the dmz (which i wouldn't run it there but anyway) aslo the MX record is just a record that basically says "for this domain our mail server is xyz" So if are setting up mail for digitechuae.com then the MX record should be there.


Also if you are running this from a home connection (you said port 80 is being blocked) they may also have blocked port 25... it would be kinda werid that they blocked it in bound and not out as well but that happens. There are two ways of finding out:

1. Lookup and or call up you ISP and ask them.
2. Shut down everything that works on the network (this is just to make it easyer) start a protocol analyzer and have a buddy on a different connection either use a program that pings specific ports or just use a standard ftp program and have time try to ftp to your address at port 25. If you see any packets come in on port 25 then you are in luck, if not then either your settings are off or the port is blocked.
 
something even wierder....normally i get message delivery delayed messages from hotmail when im trying to mail the domain, this was when the domain wasnt set up properly, now i dotn get those emails. wierd
 
er...i cant find anyone who would know how to use nmap. or any particularly useful ping program. could anyone ping my machine?....ive got ethereal scanning for any traffic on my mail pc. mail.digitechuae.com. port 25. thanks :)
 
nik said:
er...i cant find anyone who would know how to use nmap. or any particularly useful ping program. could anyone ping my machine?....ive got ethereal scanning for any traffic on my mail pc. mail.digitechuae.com. port 25. thanks :)
Click to expand...

I cannot ping your domain or IP address. I also cannot telnet to port 25 on your mail server.

If your ISP is blocking port 80 then they are probably blocking port 25 also. In that case you would have to use a mail hop relay service like I do. Dyndns.org has this service but you have to use their dns servers (I think),
 
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