Verizon blocking port 465 to godaddy?
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I would suspect something like the AV on the computer, but if the laptop is taken out of the network, it sends mail fine. Also on an iPhone, we reproduced the same problem. On wifi through the bad Verizon connection, the phone can't send email. If we disconnect from wifi and let it go to the mobile carrier the email sends. So it's not a Windows or AV thing.
I'm hoping if I can get an email address of someone in support at Verizon so I can email them my findings to prove it's on their network.
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As for some of the back story to respond to the stuff up above about the SMTP relay. Yes, up until two weeks ago, if you were a Verizon customer, you had to put their server in your SMTP server field, and specify port 465 and SSL and a Verizon username and password. So this was not an open relay, but a way for them to see exactly what customer was sending what and how much. For what ever reason, they shut that service down and you should be able to connect to your email provider directly. That doesn't seem to be working....
I know all the settings for the accounts are correct, because as soon as they leave that particular Verizon connection, they can send email once again.
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WOW, the invasion of privacy on that email service seems borderline criminal.
Is this a business connection?
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@Dashrender said in Verizon blocking port 465 to godaddy?:
WOW, the invasion of privacy on that email service seems borderline criminal.
Is this a business connection?
Yes, static IP and all.
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Cox also has a server on port 465 at smtp.cox.net I'm curious what you see inside vs outside, will it be similarly broken setup communication?
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@Mike-Davis said in Verizon blocking port 465 to godaddy?:
@Dashrender said in Verizon blocking port 465 to godaddy?:
WOW, the invasion of privacy on that email service seems borderline criminal.
Is this a business connection?
Yes, static IP and all.
To me this is as grievous as Lenovo's actions. The BS excuse I'm sure is antispam, wow.. just wow.
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@Dashrender said in Verizon blocking port 465 to godaddy?:
Cox also has a server on port 465 at smtp.cox.net I'm curious what you see inside vs outside, will it be similarly broken setup communication?
Thanks for the idea to try to connect to another mail server. When I try to connect to cox from Verizon, it looks like it works:
CONNECTED(00000138) --- Certificate chain 0 s:/C=US/ST=Georgia/L=Atlanta/O=Cox Communications, Inc./CN=smtp.cox.net i:/C=US/O=Entrust, Inc./OU=See www.entrust.net/legal-terms/OU=(c) 2012 Entrust, Inc. - for authorized use only/CN=Entrust Certification Authority - L1K 1 s:/C=US/O=Entrust, Inc./OU=See www.entrust.net/legal-terms/OU=(c) 2012 Entrust, Inc. - for authorized use only/CN=Entrust Certification Authority - L1K i:/C=US/O=Entrust, Inc./OU=See www.entrust.net/legal-terms/OU=(c) 2009 Entrust, Inc. - for authorized use only/CN=Entrust Root Certification Authority - G2 2 s:/C=US/O=Entrust, Inc./OU=See www.entrust.net/legal-terms/OU=(c) 2009 Entrust, Inc. - for authorized use only/CN=Entrust Root Certification Authority - G2 i:/C=US/O=Entrust, Inc./OU=www.entrust.net/CPS is incorporated by reference/OU=(c) 2006 Entrust, Inc./CN=Entrust Root Certification Authority 3 s:/C=US/O=Entrust, Inc./OU=www.entrust.net/CPS is incorporated by reference/OU=(c) 2006 Entrust, Inc./CN=Entrust Root Certification Authority i:/C=US/O=Entrust, Inc./OU=www.entrust.net/CPS is incorporated by reference/OU=(c) 2006 Entrust, Inc./CN=Entrust Root Certification Authority --- Server certificate -----BEGIN CERTIFICATE----- MIIFJjCCBA6gAwIBAgIEUNRzGDANBgkqhkiG9w0BAQsFADCBujELMAkGA1UEBhMC VVMxFjAUBgNVBAoTDUVudHJ1c3QsIEluYy4xKDAmBgNVBAsTH1NlZSB3d3cuZW50 cnVzdC5uZXQvbGVnYWwtdGVybXMxOTA3BgNVBAsTMChjKSAyMDEyIEVudHJ1c3Qs IEluYy4gLSBmb3IgYXV0aG9yaXplZCB1c2Ugb25seTEuMCwGA1UEAxMlRW50cnVz dCBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eSAtIEwxSzAeFw0xNTA2MTYwMzUwMTVa Fw0xODA1MDMyMDEyMDJaMGsxCzAJBgNVBAYTAlVTMRAwDgYDVQQIEwdHZW9yZ2lh MRAwDgYDVQQHEwdBdGxhbnRhMSEwHwYDVQQKExhDb3ggQ29tbXVuaWNhdGlvbnMs IEluYy4xFTATBgNVBAMTDHNtdHAuY294Lm5ldDCCASIwDQYJKoZIhvcNAQEBBQAD ggEPADCCAQoCggEBAO+5+Bbav8eiN0NU8V4RP06IG+RiwvOcxCxM/kCvsxlaKmvt MKIWzLtDGctVTTm6Fy5UWwY90M17FK041twLCypJQn7kXSUoW9garfs6RL5C2QD/ 3SpVldhIOFIse+Sdj/0/znOzyPIaeDMBYo5qMFPbNqrgCPuSgbkJPzMccBNldv03 US+RQoj5TdCB5ed+EnHLj5w9dq/+EZTuIqNDLsHVGHljF2rYqWEyAPKEr5/LNKyc FEy2m3zJwTWK9jf7gyZruw3ZZy8tSFafOyFb76Wk7HdCjRn/0xUuzKipgR9vOfEC wS/hGCvDqj/aaqIKS1jQPNcdUyea6jttNgWZMXkCAwEAAaOCAYAwggF8MAsGA1Ud DwQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwMwYDVR0fBCww KjAooCagJIYiaHR0cDovL2NybC5lbnRydXN0Lm5ldC9sZXZlbDFrLmNybDBLBgNV HSAERDBCMDYGCmCGSAGG+mwKAQUwKDAmBggrBgEFBQcCARYaaHR0cDovL3d3dy5l bnRydXN0Lm5ldC9ycGEwCAYGZ4EMAQICMGgGCCsGAQUFBwEBBFwwWjAjBggrBgEF BQcwAYYXaHR0cDovL29jc3AuZW50cnVzdC5uZXQwMwYIKwYBBQUHMAKGJ2h0dHA6 Ly9haWEuZW50cnVzdC5uZXQvbDFrLWNoYWluMjU2LmNlcjAXBgNVHREEEDAOggxz bXRwLmNveC5uZXQwHwYDVR0jBBgwFoAUgqJwdN28Uz/Pe9T3zX+nYMYKTL8wHQYD VR0OBBYEFLTpFOXHJXiDIoLgT6c8YvNaXPbpMAkGA1UdEwQCMAAwDQYJKoZIhvcN AQELBQADggEBAJz3m/3wClsA9Tl2aOy2a2q0G4gLW0VEwh/mAj/hyeUl+fATQ7ZH jUm8V4ve7XsG4AYs8IfmBvC/n+HSt3+DlqpfdntuMt20mpSNzh+9I0QsMxwh4OuZ NudNXlGJRFp/fnAmymGnZ0r1M1tfPAjzj3zSx9hNsGL1yN5qZFD5FMqu9LL461kW lolqRjCL+tZcyzfEtEsbemNtFEoCI0iogNVaG3lEuAUsHSdwna+wSZ7vqBQbEeP1 3Noepf8QmuNhIUMjQ/DmJJuRH8gJf5+vaxMqm2Lp0YsndNxGKPBo931yQ0n8lV3A CgtGVOGtTeBxquOg10x0D2F57CF2HELENYs= -----END CERTIFICATE----- subject=/C=US/ST=Georgia/L=Atlanta/O=Cox Communications, Inc./CN=smtp.cox.net issuer=/C=US/O=Entrust, Inc./OU=See www.entrust.net/legal-terms/OU=(c) 2012 Entrust, Inc. - for authorized use only/CN=Entrust Certification Authority - L1K --- No client certificate CA names sent --- SSL handshake has read 5766 bytes and written 322 bytes --- New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA Server public key is 2048 bit Compression: NONE Expansion: NONE SSL-Session: Protocol : TLSv1 Cipher : DHE-RSA-AES256-SHA Session-ID: 18370F7C01C5EF4F5896DBF9C2BBEB31386FFE5D0B125BC916B89D7EA6CA91E8 Session-ID-ctx: Master-Key: DB59D2846345B7807BDA2F42ACE1DF3B9D9AD4A09F83882E72830611A7EBC26460ED9948DE786BA748AE9982121DB706 Key-Arg : None Start Time: 1481082664 Timeout : 300 (sec) Verify return code: 19 (self signed certificate in certificate chain) --- 220 eastrmimpo305.cox.net cox ESMTP server ready -
So Verizon isn't out and out blocking 465 because some stuff goes through.
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not that it should matter, how about openssl'ing the IP address of your SMTP server instead of the FQDN?
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@Dashrender said in Verizon blocking port 465 to godaddy?:
not that it should matter, how about openssl'ing the IP address of your SMTP server instead of the FQDN?
good idea. That would rule out any DNS stuff like suggested above. It seems they are doing some kind of DNS round robin. I queried the DNS entry on a few different server and tried them all inside the bad Verizon and none of them work.
Outside the bad network, which ever one I try seems to work.
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@Mike-Davis said in Verizon blocking port 465 to godaddy?:
Then I decided to set up the Ubiquiti EdgeRouter to see if that made a difference.
What was the outcome of using the ER?
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@Dashrender said in Verizon blocking port 465 to godaddy?:
not that it should matter, how about openssl'ing the IP address of your SMTP server instead of the FQDN?
Definitely try this to rule out DNS.
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@Mike-Davis said in Verizon blocking port 465 to godaddy?:
As for some of the back story to respond to the stuff up above about the SMTP relay. Yes, up until two weeks ago, if you were a Verizon customer, you had to put their server in your SMTP server field, and specify port 465 and SSL and a Verizon username and password. So this was not an open relay, but a way for them to see exactly what customer was sending what and how much. For what ever reason, they shut that service down and you should be able to connect to your email provider directly. That doesn't seem to be working....
I know all the settings for the accounts are correct, because as soon as they leave that particular Verizon connection, they can send email once again.
That was their recommendation but not the only way. You could always run your own proxy. They have no way to block it, not universally.
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I've used a Verizon business connection for years and never had to use a relay.
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@Mike-Davis said in Verizon blocking port 465 to godaddy?:
@Dashrender said in Verizon blocking port 465 to godaddy?:
not that it should matter, how about openssl'ing the IP address of your SMTP server instead of the FQDN?
good idea. That would rule out any DNS stuff like suggested above. It seems they are doing some kind of DNS round robin. I queried the DNS entry on a few different server and tried them all inside the bad Verizon and none of them work.
Outside the bad network, which ever one I try seems to work.
you can find all available IPs by using nslookup to find all MX records, then all the IPs of those entries. Should be much faster than pinging the FQDN from several sources.
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@Dashrender said in Verizon blocking port 465 to godaddy?:
@Mike-Davis said in Verizon blocking port 465 to godaddy?:
Then I decided to set up the Ubiquiti EdgeRouter to see if that made a difference.
What was the outcome of using the ER?
ER performed the same. I put the Verizon router back in place since the Verizon router also had wifi.
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@BRRABill said in Verizon blocking port 465 to godaddy?:
I've used a Verizon business connection for years and never had to use a relay.
It's an odd situation where what normally works doesn't and now I have to find the test to show them who needs to own the problem .
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@Dashrender said in Verizon blocking port 465 to godaddy?:
you can find all available IPs by using nslookup to find all MX records, then all the IPs of those entries. Should be much faster than pinging the FQDN from several sources.
I think they are using round robin DNS. I know what you mean. If you query yahoo.com, it lists all the addresses. If you query smtpout.secureserver.net you only get one address each time, and it's usually different.
> yahoo.com Server: google-public-dns-a.google.com Address: 8.8.8.8 Non-authoritative answer: Name: yahoo.com Addresses: 2001:4998:c:a06::2:4008 2001:4998:44:204::a7 2001:4998:58:c02::a9 98.138.253.109 98.139.183.24 206.190.36.45 > smtpout.secureserver.net Server: google-public-dns-a.google.com Address: 8.8.8.8 Non-authoritative answer: Name: smtpout.where.secureserver.net Address: 173.201.192.229 Aliases: smtpout.secureserver.net > smtpout.secureserver.net Server: google-public-dns-a.google.com Address: 8.8.8.8 Non-authoritative answer: Name: smtpout.where.secureserver.net Address: 68.178.252.229 Aliases: smtpout.secureserver.netAs you can see for yahoo, you get a bunch of address the first time, but in the case of smtpout.secureserver.net, you get a different IP each time. With that said I tried a few of them and got the same result. The response gets truncated inside the bad Verizon network.
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@Mike-Davis said
As you can see for yahoo, you get a bunch of address the first time, but in the case of smtpout.secureserver.net, you get a different IP each time. With that said I tried a few of them and got the same result. The response gets truncated inside the bad Verizon network.
And it works to other servers inside the bad Verizon network?
