Ahmed Shareef wrote:
Could somebody help me. There is some problem with SMTP port
If my client is connected to LAN (office network) every thing is fine,
they are able to use port 25 and 587. But my problem is that when ever
they are connecting from out side they are not able to access port 25
and 587 but they are able to telnet port 25 and 587
*It is very urgent I will be appreciate your early response*
For more clarification my side I have two network cards in my mail
server one with public IP address and other one with LAN IP address
(office network) office user are configure with LAN IP address
(internal IP) and *firewall is disable*
*If I configure with port 587 they are getting above error message *
Your server has unexpectedly terminated the connection. Possible
causes for this include server problems, network problems, or a long
period of inactivity. Account: ' mail.domain.net
<http://email.dit.net/>', Server: 'mail.domain.net
<http://email.dit.net/>', Protocol: SMTP, Port: 587, Secure (SSL):
Yes, Error Number: 0x800CCC0F
*If I configure with port 25 they are getting above error message *
The server does not support a SSL connection. Account: 'mail.domain.
<http://email.dubai.com/>net', Server: ' _mail.
<http://email.dubai.com/>domain.net <http://domain.net>_ ', Protocol:
SMTP, Server Response: '250 rblsmtpd.local', Port: 25, Secure(SSL):
Yes, Server Error: 250, Error Number: 0x800CCC7D
*Here is my tcp.smtp*
127.:allow,RELAYCLIENT="",DKSIGN="/var/qmail/control/domainkeys/%/private",RBLSMTPD="",NOP0FCHECK="1"
:allow,BADMIMETYPE="",BADLOADERTYPE="M",CHKUSER_RCPTLIMIT="50",CHKUSER_WRONGRCPTLIMIT="10",QMAILQUEUE="/var/qmail/bin/simscan",DKSIGN="/var/qmail/control/domainkeys/%/private",NOP0FCHECK="1"
ask them to use TCPView from Sysinternals (if they are using windows)
and you an iptraf or tcpdump for client ip, maybe they have enabled by
mistake other ports in their mail client. tcpview cand show you which
program to what ip and port is connecting.
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