[lug] SMTP delivery: No route to host

[Dan Cox]

What does the routing table look like on the firewall and on the host
your sending mail from (netstat -rn)? Off the top of my head this looks
like your firewall or the host doesn't know the route to the smtp
server. Might be a default route thing.Is the 206.247.117.72 host your
server or your ISPs server?

Dan Cox

On Sat, 2002-11-23 at 14:09, Justin-lists wrote:
> Basic problem is, I cannot send out mail via smtp from any of my machines
> behind my linux firewall box. I am using Evolution to send mail through my
> smtp server and I get a "No route to host" error everytime I try. I also get
> this when trying to telnet to my smtp port:
> [glow at sirius mail]$ telnet jackmoves.com 25
> Trying 206.247.117.72...
> telnet: connect to address 206.247.117.72: No route to host
> 
> I tried setting my mail client to use local sendmail to send mail and got the
> same error:
> Nov 23 13:27:50 sirius sendmail[4375]: gANKRnTK004373:
> to=<justin at jackmoves.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp,
> pri=30499, relay=jackmoves.com. [206.247.117.72], dsn=4.0.0, stat=Deferred:
> jackmoves.com.: No route to host
> 
> My firewall (Shorewall btw) is set to allow anything out from inside the
> network or from the firewall. I turned on the firewall logging and the packets
> seem to get sent out through the fw:
> Nov 23 14:03:35 naz kernel: Shorewall:loc2net:ACCEPT:IN=eth1 OUT=ppp0
> SRC=192.168.1.6 DST=206.247.117.72 LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=62310
> DF PROTO=TCP SPT=33418 DPT=25 WINDOW=5840 RES=0x00 SYN URGP=0
> 
> I've tried telnet'ing to any of my other server ports on the box (80, 110, 22,
> 21) and they all connect perfectly fine. I just cannot get anything out to the
> smtp port. I have tried telnet'ing to my smtp port from a machine not on my
> local network and it works fine. I tried to see if sniffit would see anything
> on the firewall box but so far I have had no luck with it. I am totally
> stumped, and peeved that I can't send my email from any of my boxes :( This
> has never worked as far as I know either since I normally don't use local mail
> clients for sending email. Any ideas or what I can try to do? I've also
> attached a traceroute for port 25. It seems to get to my server eventually,
> but not after a long while. TIA.
> 
> Justin
> 
> 
> --
> glow at jackmoves.com
>