On Wed, 2004-07-14 at 19:11, Ed McCorduck wrote: > Here's what my ISP told me about any blocking of smtp connections: > > > Road Runner does not block any significant ports on your > > connection. The Road Runner service only blocks ports 137-139 > > inclusive for the security of your system. These blocked > > ports will not affect connectivity There is nothing wrong with the connection to sendmail at your site. [egreshko@misty egreshko]$ telnet 24.24.15.155 25 Trying 24.24.15.155... Connected to syr-24-24-15-155.twcny.rr.com (24.24.15.155). Escape character is '^]'. 220 edsgate.mccorduck.ws ESMTP Sendmail 8.12.8/8.12.8; Wed, 14 Jul 2004 09:54:44 -0400 quit The problem is still in DNS.... [egreshko@misty egreshko]$ host -t mx mccorduck.ws ;; connection timed out; no servers could be reached A quick nmap scan of your host shows.... Port State Service 22/tcp open ssh 25/tcp open smtp 80/tcp open http 110/tcp open pop-3 111/tcp open sunrpc 135/tcp filtered loc-srv 136/tcp filtered profile 137/tcp filtered netbios-ns 138/tcp filtered netbios-dgm 139/tcp filtered netbios-ssn 143/tcp open imap2 445/tcp filtered microsoft-ds 593/tcp filtered http-rpc-epmap 1024/tcp open kdm 1400/tcp filtered cadkey-tablet 6000/tcp open X11 Remote operating system guess: Linux Kernel 2.4.0 - 2.5.20 Uptime 0.267 days (since Wed Jul 14 15:37:43 2004) TCP Sequence Prediction: Class=random positive increments Difficulty=5447144 (Good luck!) IPID Sequence Generation: All zeros Which indicates that port 53 for your DNS server is not opened. -- "I think the problem, to be quite honest with you, is that you've never actually known what the question is." --The computer "Deep Thought" in "Life, The Universe and Everything" -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list