Instructions/Info
Input Fields
TestReceiver parameter entry
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Test Results

Checking checktls.com from www11-do.CheckTLS.com(V03.72.12) at 2024-03-03T17:49:35Z:

seconds lookup result
[000.000]      DNS LOOKUPS
[000.011]      SEARCHLIST104.131.108.216,134.209.169.224,1.1.1.1,8.8.8.8,67.207.67.3
[000.017]      MX-->checktls.com(10) mail11-do.checktls.com
[000.018]      MX-->checktls.com(20) mail12-do.checktls.com
[000.022]      MX:A-->mail11-do.checktls.com134.209.47.28
[000.027]      MX:A-->mail12-do.checktls.com104.131.118.193
seconds test stage and result.
[000.000] Trying TLS on mail11-do.checktls.com[134.209.47.28:25] (10)
[000.005] Server answered
[000.097] <‑‑ 220 mail11-do.checktls.com ESMTP Sendmail 8.15.2/8.15.2; Sun, 3 Mar 2024 12:49:35 -0500
[000.098] We are allowed to connect
[000.098] ‑‑> EHLO www11-do.CheckTLS.com
[000.139] <‑‑ 250-mail11-do.checktls.com Hello www11-do.checktls.com [167.71.160.115], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5
250-STARTTLS
250-DELIVERBY
250 HELP
[000.139] We can use this server
[000.139] TLS is an option on this server
[000.139] ‑‑> STARTTLS
[000.140] <‑‑ 220 2.0.0 Ready to start TLS
[000.140] STARTTLS command works on this server
[000.164] Connection converted to SSL
SSLVersion in use: TLSv1_3
Cipher in use: TLS_AES_256_GCM_SHA384
Perfect Forward Secrecy: yes
Session Algorithm in use: Curve X25519 DHE(253 bits)
Certificate #1 of 5 (sent by MX):
Cert VALIDATED: ok
Cert Hostname VERIFIED (mail11-do.checktls.com = *.checktls.com | DNS:*.checktls.com | DNS:checktls.com)
Not Valid Before: Oct  7 12:43:36 2023 GMT
Not Valid After: Nov  7 12:43:36 2024 GMT
subject: /CN=*.checktls.com
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./OU=http://certs.godaddy.com/repository//CN=Go Daddy Secure Certificate Authority - G2
Certificate #2 of 5 (sent by MX):
Cert VALIDATED: ok
Not Valid Before: May  3 07:00:00 2011 GMT
Not Valid After: May  3 07:00:00 2031 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./OU=http://certs.godaddy.com/repository//CN=Go Daddy Secure Certificate Authority - G2
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
Certificate #3 of 5 (added from CA Root Store):
Cert VALIDATED: ok
Not Valid Before: Sep  1 00:00:00 2009 GMT
Not Valid After: Dec 31 23:59:59 2037 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
Certificate #4 of 5 (sent by MX):
Cert VALIDATED:
Not Valid Before: Jan  1 07:00:00 2014 GMT
Not Valid After: May 30 07:00:00 2031 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
issuer: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
Certificate #5 of 5 (sent by MX, also in CA Root Store):
Cert VALIDATED:
Not Valid Before: Jun 29 17:06:20 2004 GMT
Not Valid After: Jun 29 17:06:20 2034 GMT
subject: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
issuer: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
[000.240] ~~> EHLO www11-do.CheckTLS.com
[000.282] <~~ 250-mail11-do.checktls.com Hello www11-do.checktls.com [167.71.160.115], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-AUTH GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN
250-DELIVERBY
250 HELP
[000.282] TLS successfully started on this server
[000.282] ~~> MAIL FROM:<test@checktls.com>
[000.332] <~~ 250 2.1.0 <test@checktls.com>... Sender ok
[000.332] Sender is OK
[000.332] ~~> QUIT
[000.333] <~~ 221 2.0.0 mail11-do.checktls.com closing connection
seconds test stage and result.
[000.000] Trying TLS on mail12-do.checktls.com[104.131.118.193:25] (20)
[000.005] Server answered
[000.096] <‑‑ 220 mail12-do.checktls.com ESMTP Sendmail 8.15.2/8.15.2; Sun, 3 Mar 2024 12:49:35 -0500
[000.096] We are allowed to connect
[000.097] ‑‑> EHLO www11-do.CheckTLS.com
[000.139] <‑‑ 250-mail12-do.checktls.com Hello www11-do.checktls.com [167.71.160.115], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-STARTTLS
250-DELIVERBY
250 HELP
[000.139] We can use this server
[000.139] TLS is an option on this server
[000.139] ‑‑> STARTTLS
[000.140] <‑‑ 220 2.0.0 Ready to start TLS
[000.140] STARTTLS command works on this server
[000.162] Connection converted to SSL
SSLVersion in use: TLSv1_3
Cipher in use: TLS_AES_256_GCM_SHA384
Perfect Forward Secrecy: yes
Session Algorithm in use: Curve X25519 DHE(253 bits)
Certificate #1 of 5 (sent by MX):
Cert VALIDATED: ok
Cert Hostname VERIFIED (mail12-do.checktls.com = *.checktls.com | DNS:*.checktls.com | DNS:checktls.com)
Not Valid Before: Oct  7 12:43:36 2023 GMT
Not Valid After: Nov  7 12:43:36 2024 GMT
subject: /CN=*.checktls.com
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./OU=http://certs.godaddy.com/repository//CN=Go Daddy Secure Certificate Authority - G2
Certificate #2 of 5 (sent by MX):
Cert VALIDATED: ok
Not Valid Before: May  3 07:00:00 2011 GMT
Not Valid After: May  3 07:00:00 2031 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./OU=http://certs.godaddy.com/repository//CN=Go Daddy Secure Certificate Authority - G2
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
Certificate #3 of 5 (added from CA Root Store):
Cert VALIDATED: ok
Not Valid Before: Sep  1 00:00:00 2009 GMT
Not Valid After: Dec 31 23:59:59 2037 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
issuer: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
Certificate #4 of 5 (sent by MX):
Cert VALIDATED:
Not Valid Before: Jan  1 07:00:00 2014 GMT
Not Valid After: May 30 07:00:00 2031 GMT
subject: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
issuer: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
Certificate #5 of 5 (sent by MX, also in CA Root Store):
Cert VALIDATED:
Not Valid Before: Jun 29 17:06:20 2004 GMT
Not Valid After: Jun 29 17:06:20 2034 GMT
subject: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
issuer: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
[000.237] ~~> EHLO www11-do.CheckTLS.com
[000.280] <~~ 250-mail12-do.checktls.com Hello www11-do.checktls.com [167.71.160.115], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DELIVERBY
250 HELP
[000.280] TLS successfully started on this server
[000.280] ~~> MAIL FROM:<test@checktls.com>
[000.329] <~~ 250 2.1.0 <test@checktls.com>... Sender ok
[000.329] Sender is OK
[000.329] ~~> QUIT
[000.330] <~~ 221 2.0.0 mail12-do.checktls.com closing connection

CheckTLS ConfidenceFactor for "checktls.com": 114 of 114 (100%, 121 max)

MX Server Pref Answer Connect HELO TLS Cert Secure From MTASTS DANE Score
mail11-do.checktls.com
[134.209.47.28:25]
10 OK
(5ms)
OK
(92ms)
OK
(42ms)
OK
(1ms)
OK
(98ms)
OK
(44ms)
OK
(50ms)
not tested not tested 114.00
mail12-do.checktls.com
[104.131.118.193:25]
20 OK
(5ms)
OK
(91ms)
OK
(43ms)
OK
(1ms)
OK
(95ms)
OK
(45ms)
OK
(49ms)
not tested not tested 114.00
Average 100% 100% 100% 100% 100% 100% 100% 114