Postmarks certificate for SMTP expired Sep 15 23:59:59 2024 GMT
$ openssl s_client -connect smtp.postmarkapp.com:2525 -starttls smtp
Connecting to 34.249.162.51
CONNECTED(00000006)
depth=2 C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root G2
verify return:1
depth=1 C=US, O=DigiCert Inc, OU=www.digicert.com, CN=GeoTrust TLS RSA CA G1
verify return:1
depth=0 CN=.postmarkapp.com
verify error:num=10:certificate has expired
notAfter=Sep 15 23:59:59 2024 GMT
verify return:1
depth=0 CN=.postmarkapp.com
notAfter=Sep 15 23:59:59 2024 GMT
verify return:1
---
Certificate chain
0 s:CN=*.postmarkapp.com
i:C=US, O=DigiCert Inc, OU=www.digicert.com, CN=GeoTrust TLS RSA CA G1
a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
v:NotBefore: Aug 16 00:00:00 2023 GMT; NotAfter: Sep 15 23:59:59 2024 GMT
1 s:C=US, O=DigiCert Inc, OU=www.digicert.com, CN=GeoTrust TLS RSA CA G1
i:C=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert Global Root G2
a:PKEY: rsaEncryption, 2048 (bit); sigalg: RSA-SHA256
v:NotBefore: Nov 2 12:23:37 2017 GMT; NotAfter: Nov 2 12:23:37 2027 GMT