Unable to connect, secure and authenticate any connection
Does the remote host support TLS/SSL connections on port 443?
Summary
Host:
smtp.google.com, 172.253.62.27, port 443
Protocols:
Failed
Unable to connect, secure and authenticate any connection
Protocol support
Protocol support:
TLS 1.3
No support
TLS 1.2
No support
TLS 1.1
No support
TLS 1.0
No support
SSL 3.0
No support
SSL 2.0
No support
Verification:
Unable to connect, secure and authenticate any connection
Does the remote host support TLS/SSL connections on port 443?
API
You may perform this lookup using the API and get the results as easy-to-parse JSON data.
Read more on the API at https://iamroot.tech/about/api (regarding authentication and rate limits, among other things), or give it a go right away using the 'try it' button.
INFMultiple A-records! Domain 'smtp.google.com' has several A-records, and thereby multiple IPs to check. IP 172.253.62.27 will be used.
042
+000
Check protocols
042
+000
Start SSL 2.0 protocol check, smtp.google.com (172.253.62.27), port 443
042
+000
Start TLS 1.3 protocol check, smtp.google.com (172.253.62.27), port 443
043
+000
Start TLS 1.2 protocol check, smtp.google.com (172.253.62.27), port 443
427
+000
Start TLS 1.1 protocol check, smtp.google.com (172.253.62.27), port 443
851
+000
Start TLS 1.0 protocol check, smtp.google.com (172.253.62.27), port 443
851
+000
Start SSL 3.0 protocol check, smtp.google.com (172.253.62.27), port 443
5.033
+4.991
Protocol check of SSL 2.0 done in 4.990ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.033
+4.991
Protocol check of TLS 1.3 done in 4.990ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.033
+4.990
Protocol check of TLS 1.2 done in 4.990ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.423
+4.996
Protocol check of TLS 1.1 done in 4.996ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.845
+4.994
Protocol check of SSL 3.0 done in 4.993ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.845
+4.994
Protocol check of TLS 1.0 done in 4.994ms - failed Unable to connect to host 'smtp.google.com' (172.253.62.27) on port 443.
5.845
+813
ERRUnable to connect, secure and authenticate any connection Does the remote host support TLS/SSL connections on port 443?
5.845
+000
Done
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