telenet to a linuxbox not working from a windows pc but from Solaris
I have one Linux box (=SERVER) running Fedora Core 3 with an installed and working sendmail on it. The SERVER is directly connected to the Internet via leased line. For security reasons I am using IPTables on that SERVER.
The SERVER is able to send an receive e-mail. To be able to send mails from a client (=CLIENT) at home (A Windows 2003 Server) via that Linux box, I have installed SMTP-Auth on the SERVER to avoid to have an open relay. I am able to use the SERVER as an SMTP server via Outlook with authentication activated on my CLIENT. I am running a Lotus Notes Server on the CLIENT, but SMTP Auth. functionality is not implemented into Lotus Notes. So I installed MercuryC SMTP Client on the CLIENT. But I am not able to connect to the SERVER using the SMTP Auth user/password. Then I tried to telent the SERVER from my CLIENT. On the Windows Server 2003 CLIENT I have entered >telnet my.server.com 25 But all i got was: "Connection Refused". Doing that local on my SERVER is no problem, there I can connect to SMTP Port 25 and do a HELO or EHLO. I tried to telent my SERVER from different clients (Windows XP and Windows 2003 Server), and I found out that a telnet from a Sun Solaris is working and takes me to SMTP Login... :scratch: So, experts, Q1) Why is telnet working from a Sun Solaris box and NOT from Windows :confused: Q2) What can I do to get Mercury talking to my Server :confused: Any help would be appreciated! |
Stop your server firewall(iptables) and check , telnet service is running or not.
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Telnet to another port e.g. 22 for SSH is working!
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Ok, telnet to port 25 is now working. If you have same problems and installed McAfee Virusscan Enterprise 8, take a look into your anti-virus configuration. There is an option to block SMTP traffic on port 25.
Once I have deactivated that, I was able to telnet the SERVER. Not bad so far, but I am still not able to to use my SERVER as a relay host with mercury running on my CLIENT. I get the following errors: within mercury: Connection error during handshake with SERVER in the maillog on the SERVER: SERVER sendmail[8038]: j7CFFWoJ008038: pxx.2xx.1.215.tisdip.tiscali.de [xx.21xx1.215] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA Any idea? |
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