Mail from cpvlink.com never arrives

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Mail from cpvlink.com never arrives

Postby lwc » Mon Jan 06, 2014 10:59 pm

http://cpvlink.com/signup claims they're sending me my verification address but it never arrives, no matter which keyword and domain I use.
They do send it for me for non Spamgourmet addresses.

Does it work with Spamgourmet for anyone else?
lwc
 
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Re: Mail from cpvlink.com never arrives

Postby josh » Thu Jan 09, 2014 8:53 pm

their mail server isn't configured correctly - reverse lookup isn't set right:

2014-01-09 20:48:30 H=(srv2.cpv.com) [184.154.42.106] rejected MAIL <no_reply@cpvlink.com>: X-Host-Lookup-Failed: Reverse DNS lookup f
ailed for 184.154.42.106 (failed)
josh
 
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Re: Mail from cpvlink.com never arrives

Postby lwc » Sun Jan 12, 2014 7:59 pm

Let's continue this at viewtopic.php?t=958.
lwc
 
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Re: Mail from cpvlink.com never arrives

Postby lwc » Thu Jan 16, 2014 8:41 am

Ok, this case needs attention of its own. I got a "no other mail hosts causes us problems, so it's your problem" message...

Is there anyway you'll contact them yourself via contact AT cpvlink.com? I don't know what else to do.
lwc
 
Posts: 455
Joined: Sat Aug 28, 2004 9:09 am

Re: Mail from cpvlink.com never arrives

Postby josh » Fri Jan 17, 2014 10:00 pm

We have a little underpowered box servicing over 6.5 million disposable email addresses spread over dozens of domains. Beyond the actual disposable addresses, the Rumpelstiltskin attacks add a tremendously larger number of non-addresses (each Rumpelstiltskin attack repeated for each of the domains).

Without outer defenses like the reverse lookup check culling hits from the vast bot armies, our box would go down almost instantaneously - have a look at the graveyard of former disposable address services that fell to the same hordes.

Also, I can say that when we move from one ISP to another, getting a new set of IP addresses, in the period between the move is complete and when the ISP sets up the proper PTR records, we get a *lot* of failures - this check is not uncommon at all.
josh
 
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Joined: Fri Aug 29, 2003 2:28 pm

Re: Mail from cpvlink.com never arrives

Postby lwc » Sun Jan 19, 2014 12:27 pm

Is there any chance you'll contact them then? I happen to be their only Spamgourmet client so they couldn't care less about any of this.
lwc
 
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