Results 1 to 9 of 9
  1. #1
    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:
    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):

    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:
    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

  2. #2
    Join Date
    Dec 2001
    Location
    127.0.0.1
    Posts
    3,635
    Can you connect to that server from another network outside of your DC?
    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 2005!
    Want to learn more? Give us a call - +1 (844) 4SIMPLI or email sales[@]simplinetworks.com today!

  3. #3
    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:
    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.

  4. #4
    Join Date
    Dec 2001
    Location
    127.0.0.1
    Posts
    3,635
    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 2005!
    Want to learn more? Give us a call - +1 (844) 4SIMPLI or email sales[@]simplinetworks.com today!

  5. #5
    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. #6
    Join Date
    Mar 2005
    Location
    Maine, USA
    Posts
    296
    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. #7
    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. #8
    Join Date
    Mar 2005
    Location
    Maine, USA
    Posts
    296
    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. #9
    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.

  10. Newsletters

    Subscribe Now & Get The WHT Quick Start Guide!

Related Posts from theWHIR.com

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •