Home page logo
/

nanog logo nanog mailing list archives

Re: anybody here from verizon's e-mail department?
From: Dave Pooser <dave.nanog () alfordmedia com>
Date: Wed, 22 Feb 2006 10:17:28 -0600


Which probably means Paul is blocking whatever server Verizon is using
for its
sender verification

Something I've seen before is a lot of mail servers will wait 10-45 seconds
before presenting an SMTP prompt to remote hosts; spambots typically won't
wait that long and give up. But since Verizon's sender verification (as of a
couple months ago; haven't checked recently) times out after 30 seconds,
that technique can have the side effect of making Verizon customers
unreachable.
-- 
Dave Pooser, ACSA, CCNA
Manager of Information Services
Alford Media http://www.alfordmedia.com




  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]