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  #11  
Old 27th May 2010, 22:05
zogthegreat zogthegreat is offline
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Tried some other things:

[root@server1 tmp]# telnet alt1.gmail-smtp-in.l.google.com 25
Trying 209.85.219.11...
telnet: connect to address 209.85.219.11: Connection timed out
telnet: Unable to connect to remote host: Connection timed out

[root@server1 tmp]# telnet mxmta.sympatico.ca 25
Trying 67.69.240.17...
Connected to mxmta.sympatico.ca (67.69.240.17).
Escape character is '^]'.
220 toip15.srvr.bell.ca ESMTP

[root@server1 tmp]# telnet cluster3.eu.messagelabs.com 25
Trying 193.109.255.115...
telnet: connect to address 193.109.255.115: No route to host
Trying 193.109.254.83...

The second and third ones are interesting, because they are both smtp servers for my ISP, (Bell Canada). #2 is for residential customers and #3 is for business customers.

I sent an e-mail to gmail support, their website says that they will reply "within a few days".

Once again, any suggestions would be appreciated.

Thanks

zog
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  #12  
Old 27th May 2010, 22:09
edge edge is offline
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Not sure and I can be wrong, but it looks like your provider is blocking port 25 for outgoing mail.

The only option for you is to use "mxmta.sympatico.ca" as outgoing mailserver.

But than again.. I could be wrong on this.
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  #13  
Old 27th May 2010, 22:39
zogthegreat zogthegreat is offline
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Hi edge,

Just checked with my ISP, they say they don`t block any ports.

Thanks

zog
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  #14  
Old 28th May 2010, 00:56
maced0n maced0n is offline
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Have you also checked the SElinux, firewall or any outbound blocks on port 25?
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  #15  
Old 28th May 2010, 04:13
zogthegreat zogthegreat is offline
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Hi macedOn,

I have SELinux disables, machine on the DMZ and the firewall is configured properly. I can also telnet in form my other computers.

I think it`s more of a configuration problem, since I can send to some email servers, but not all.

I am thinking maybe the TTL is set wrong or some other "small" configuration. I will start fiddling with it tomorrow.

Thanks

zog

BTW, does anyone know how to disable telnet? I would like to shut it down when I am finished using it.
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  #16  
Old 28th May 2010, 05:20
CSsab CSsab is offline
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Try logging into your gmail and sending to your mailbox. Let us know how you go.
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  #17  
Old 28th May 2010, 10:14
maced0n maced0n is offline
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Usually this problem happens because of outbound blocks or a improper DNS settings.

To check your DNS configuration you can use http://www.intodns.com/
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  #18  
Old 28th May 2010, 12:43
CSsab CSsab is offline
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Default Common ports and what they are used for.

These are a list of some common ports and what they are used for:

Servers:

DNS Server 53 UDP
DNS Server 53 TCP
Mail Server (POP3) 110 TCP
Mail Server (SMTP) 25 TCP
Secure Web Server 443 TCP
Web Server 80 TCP
Telnet Server 23 TCP
Secure Shell Server 22 TCP
News Server 119 TCP
FTP Server 21 TCP
TFTP Server 69 UDP

You can take your machine out of DMZ and open or close whatever ports you like.

Good luck.
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  #19  
Old 28th May 2010, 16:33
zogthegreat zogthegreat is offline
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Hi everyone,

A big thanks to macedOn, I had a feeling that the problem had to do with dns:

Is there anyone who can help me sort this out?

Thanks

zog
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  #20  
Old 28th May 2010, 18:38
zogthegreat zogthegreat is offline
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UPDATE:

I have contacted the following:

Godaddy, my domain registrar. They tell me that they cannot set up a PTR record for me.

DNS2GO, my dynamic DNS routing service. They tell me for $60.00 USD per DOMAIN PER YEAR, they can route my email traffic for me, they offer no other service.

Contacted my ISP, Bell Canada, (Sympatico). They were pretty much clueless, having no idea what I was talking about.

Any suggestions?

Thanks

zog

p.s. Since my ISP doesn't offer a static IP, I am using DNS2GO. If anyone knows of a dynamic DNS routing service that will allow me to enter PTR, please let me know.

Thanks

Last edited by zogthegreat; 28th May 2010 at 19:27.
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