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Cannot connect to Verizon's mail server

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  #1  
Old
Newbie
 
Join Date: Apr 2002
Location: Canada
Posts: 14

Cannot connect to Verizon's mail server


Hi,
I recently noticed that we cannot send emails to Verizon.net customers. We just receive a message back from our server saying:
Quote:
Mail delivery failed: returning message to sender
This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

someuserremoved at verizon.net
retry timeout exceeded
We can receive from them but cannot send and they say that we are not blacklisted.

Here are our dns records (changed the domain and IP for privacy):

Quote:
mydomain.com. A 64.86.25.###
ftp A 64.86.25.###
localhost A 127.0.0.1
mail A 64.86.25.###
pop A 64.86.25.###
www A 64.86.25.###
mydomain.com. NS ns1.mydns.com.
mydomain.com. NS ns2.mydns.com.
mail MX 10
mydomain.com. TXT "v=spf1 a mx ip4:64.86.25.### ?all"
From ssh shell I cannot telnet or ping their mail server:
Quote:
sh>> nslookup -type=mx verizon.net
Server: 64.86.25.###

Non-authoritative answer:
verizon.net mail exchanger = 0 relay.verizon.net.

Authoritative answers can be found from:
verizon.net nameserver = ns2.verizon.net.
verizon.net nameserver = ns2.bellatlantic.net.
verizon.net nameserver = ns4.verizon.net.
verizon.net nameserver = ns1.bellatlantic.net.
relay.verizon.net internet address = 206.46.232.11

sh>> telnet relay.verizon.net 25
Trying 206.46.232.11...
telnet: connect to address 206.46.232.11: Connection timed out
telnet: Unable to connect to remote host: Connection timed out

sh>> ping verizon.net
PING verizon.net (206.46.230.37) 56(84) bytes of data.
64 bytes from es.verizon.net (206.46.230.37): icmp_seq=0 ttl=242
time=83.2 ms
64 bytes from es.verizon.net (206.46.230.37): icmp_seq=1 ttl=242
time=83.1 ms
64 bytes from es.verizon.net (206.46.230.37): icmp_seq=2 ttl=242
time=83.3 ms

sh>> ping relay.verizon.net
PING relay.verizon.net (206.46.232.11) 56(84) bytes of data.

--- relay.verizon.net ping statistics ---
10 packets transmitted, 0 received, 100% packet loss, time 8997ms
Anybody having this problem or had this problem?

Suggestions will be much appreciated
Regards,
Nara



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  #2  
Old
Web Hosting Rockstar
 
Join Date: Dec 2001
Location: 127.0.0.1
Posts: 3,622
Can you connect to that server from another network outside of your DC?

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  #3  
Old
Newbie
 
Join Date: Apr 2002
Location: Canada
Posts: 14
Thanx for the quick reply
I can connect from anywhere.
The server is able to send and receive from any domain but not verizon.net
their server relay.verizon.net is not accessible from our server while it is visible from my computer desktop:
Quote:
telnet relay.verizon.net 25
220 sv18pub.verizon.net MailPass SMTP server v1.2.0 - 112105154401JY+PrW ready Mon, 25 Sep 2006 12:58:44 -0500


Last edited by Nara; 09-25-2006 at 02:02 PM.
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  #4  
Old
Web Hosting Rockstar
 
Join Date: Dec 2001
Location: 127.0.0.1
Posts: 3,622
Hmmm.... might want to call Verizon's NOC and see if they've blocked your IP/range for some reason.

__________________
Simpli Networks, LLC :: http://www.simplinetworks.com :: Proudly 100% Owned.
Providing Affordable Managed Cloud/VPS Servers & Server Management Solutions.
We offer REAL 24x7x365 in-house support - proudly serving our customers since 1995!
Want to learn more? Give us a call - +1 (844) 4SIMPLI or email sales[@]simplinetworks.com today!

  #5  
Old
Newbie
 
Join Date: Apr 2002
Location: Canada
Posts: 14
I would like to call them but have no contact info.
I called their support guys that said they cannot help because I am not their customer!

  #6  
Old
Web Hosting Guru
 
Join Date: Mar 2005
Location: Maine, USA
Posts: 293
Quote:
Originally Posted by Nara
I would like to call them but have no contact info.
I called their support guys that said they cannot help because I am not their customer!
http://puck.nether.net/netops/nocs.cgi?verizon
try those numbers.

  #7  
Old
Newbie
 
Join Date: Apr 2002
Location: Canada
Posts: 14
Hawk,
Thank you, but non of these numbers seems to be working. I am waiting a possible reply to the email in that page.
Regards,

  #8  
Old
Web Hosting Guru
 
Join Date: Mar 2005
Location: Maine, USA
Posts: 293
Quote:
Originally Posted by Nara
Hawk,
Thank you, but non of these numbers seems to be working. I am waiting a possible reply to the email in that page.
Regards,
Okay, was worth a try. If you do find a working phone # to the Verizon NOC or engineer group, e-mail/contact the guy who runs that web site so he can update the list to benefit everyone.

  #9  
Old
Newbie
 
Join Date: Jun 2006
Location: Tucson
Posts: 23
Verizon.net is using a whitelist only system... Or trying to when it seems to function.. I've encountered this with several legit large corporations and ISP's trying to send mail to them.. Sometimes their smtp servers will not respond(when their whitelist system is broke), sometimes you'll get the 550 rejection, you'll have to look in your SMTP logs:

http://www2.verizon.net/micro/whitelist/ (use the ISP form)

expect a reply in two weeks or longer. Until then you'll have to relay the mail through a server already on their whitelist. Don't be suprised if you are denied, they pay close attention to whois information, reverse lookups, spf records, abuse contact, and past history from the requesting IP block. I've personally seen 3 corporations in the Fortune 500 become rejected after a whitelist request, and they are just flat out unable to send mail to any verizon customers.

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