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Old 3rd April 2013, 15:22
tomal tomal is offline
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Exclamation Email config: Newly installed Centos/Postfix/ISPConfig3

Hi:

I'm very new to this community. My heartiest thanks to the wonderful how-to's (The Perfect Server - CentOS 6.3 x86_64 (nginx, Courier, ISPConfig 3)), which helped me a lot to install and configure my Web/DNS/Mail/MySQL server without major issues. Everything works as expected except I cannot connect to my mail server using Outlook or other email client. But the webmail (squirrelmail) works and I can send/receive emails (using a relayhost).

Here is some detail of the system (domain/ip is not actual):

I have everything installed in the same server.
Hostname: websvr fullname: websvr.xyz.com
Private IP: 192.168.1.11 (I have NAT in my router and ext IP 58.97.xxx.xx)

There is a MX entry in DNS zone for mail.xyz.com and I can ping to that.

I can telnet to the port 25 using only hostname (websvr) or local IP (192.168.1.11) but unable to telnet mail.xyz.com 25.


Any help will be greatly apprecieted.
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Old 3rd April 2013, 21:39
till till is offline
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PLease check the dns records of domain xyz.com and ensure that there is a A-Record for mail.xyz.com pointing to the IP address of your server.
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Get ISPConfig support and the ISPConfig 3 manual from ispconfig.org.
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Old 4th April 2013, 03:51
tomal tomal is offline
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Quote:
Originally Posted by till View Post
PLease check the dns records of domain xyz.com and ensure that there is a A-Record for mail.xyz.com pointing to the IP address of your server.
Thanks buddy.
A and MX record both is there for mail.xyz.com and I can ping it. I asked to my provider and they confirmed no port is blocked. I configured 587 port but it is still the same. I can telnet to localhost/private IP but not mail.xyz.com.

I disabled the firewall in my router and checked the NAT for 25/587, they are ok. I also disabled the iptables in the server (to check). But nothing helped. Just one more information, I can't also telnet mail.xyz.com 110/143, none works.
Seems something is blocking my smtp/pop3/imap ports for accessing from outside.

Do you think my postfix config is ok?

Last edited by tomal; 4th April 2013 at 04:33.
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