I need to send messages between two systems which change IP on a random
basis (Qwest DSL re-assigns the IPs every few weeks). I can query the
router from the local machines on each installation to get the IP assigned
by Qwest and I want the scripts to send an email to a mail server on my
hosted domain so that I have a fixed mail target to pass the info. Problem
is that the remote smtp is blacklisting the IPs assigned to my routers. Is
there a workaround to force the source IP on the email to a known
acceptable address?
Considered signing up for one of the dynamic DNS services? If they work
on Linux they could help. Faking the IP address when sending it may be
tricky; you would probably have better luck finding a new relay for your
mail. Perhaps instead look into the dozens of sites that will send you
test messages via a web browser. Use curl or wget to send the browser
request crafted to your liking so you get a text message. Put in your
e-mail address as the sender and some of them may even CC you with the
message details.
It’s a long shot, perhaps, but you could also just pay a few extra dollars
for a static IP address.
Good luck.
Will Honea wrote:
> I need to send messages between two systems which change IP on a random
> basis (Qwest DSL re-assigns the IPs every few weeks). I can query the
> router from the local machines on each installation to get the IP assigned
> by Qwest and I want the scripts to send an email to a mail server on my
> hosted domain so that I have a fixed mail target to pass the info. Problem
> is that the remote smtp is blacklisting the IPs assigned to my routers. Is
> there a workaround to force the source IP on the email to a known
> acceptable address?
>
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And so it should too. Malware infected zombie machines are the bane of everybody for relaying spam. The IP address of the sender can’t be faked. Banning connections from dynamic IP ranges that have been declared as such by the ISPs or blacklisted is one of the more effective measures to stop spam from entering.
Why aren’t you using Qwest’s mail relays to send outgoing email?
>
> Will Honea;1995953 Wrote:
>> Problem
>> is that the remote smtp is blacklisting the IPs assigned to my routers.
>> Is
>> there a workaround to force the source IP on the email to a known
>> acceptable address?
>
> And so it should too. Malware infected zombie machines are the bane of
> everybody for relaying spam. The IP address of the sender can’t be
> faked. Banning connections from dynamic IP ranges that have been
> declared as such by the ISPs or blacklisted is one of the more effective
> measures to stop spam from entering.
>
> Why aren’t you using Qwest’s mail relays to send outgoing email?
Why some of us having balding foreheads: Now why didn’t I think of that???
Oops - Qwest stikes again. They provide only the DSL link and contract MSN
for IP services. Getting to the mail server is proving to be a PITA.
Strange - the mail sent from kmail or other clients gets thru the server I
wanted to use just fine but a direct mail send gets trapped. My ignorance
is showing here, I guess.
Is there any way to use a command line link into kmail (or some other email
client) to have it format and send a message? I’m with you on the spam
security thing - that’s why I haven’t even messed with setting up a mail
server here. ftp might just be a simpler approach anyway and I know that
works.
If it works for kmail there’s no reason it couldn’t be made to work for a script or a command line client. When you set up kmail you must have entered a SMTP relay that Qwest told you to. This is the relay host.