linux:centos:email:check-connectivity
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— | linux:centos:email:check-connectivity [2019/04/09 18:43] – created odefta | ||
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+ | ====== Check SMTP server connectivity | ||
+ | |||
+ | ===== Check SMTP SSL/TLS ===== | ||
+ | |||
+ | openssl s_client -connect medjava.ro: | ||
+ | |||
+ | < | ||
+ | CONNECTED(0000013C) | ||
+ | --- | ||
+ | Certificate chain | ||
+ | 0 s:OU = Domain Control Validated, OU = Globe Standard SSL, CN = medjava.ro | ||
+ | i:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA | ||
+ | 1 s:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA | ||
+ | i:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Certification Authority | ||
+ | 2 s:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Certification Authority | ||
+ | i:C = SE, O = AddTrust AB, OU = AddTrust External TTP Network, CN = AddTrust External CA Root | ||
+ | --- | ||
+ | Server certificate | ||
+ | -----BEGIN CERTIFICATE----- | ||
+ | MIIGUTCCBTmgAwIBAgIQcWa4ozN875XturRmQfOj3DANBgkqhkiG9w0BAQsFADCB | ||
+ | kDELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G | ||
+ | A1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxNjA0BgNV | ||
+ | </ | ||
+ | |||
+ | ===== Check SMTP STARTTLS ===== | ||
+ | |||
+ | openssl s_client -connect medjava.ro: | ||
+ | | ||
+ | < | ||
+ | CONNECTED(00000134) | ||
+ | --- | ||
+ | Certificate chain | ||
+ | 0 s:OU = Domain Control Validated, OU = Globe Standard SSL, CN = medjava.ro | ||
+ | i:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA | ||
+ | 1 s:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Domain Validation Secure Server CA | ||
+ | i:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Certification Authority | ||
+ | 2 s:C = GB, ST = Greater Manchester, L = Salford, O = COMODO CA Limited, CN = COMODO RSA Certification Authority | ||
+ | i:C = SE, O = AddTrust AB, OU = AddTrust External TTP Network, CN = AddTrust External CA Root | ||
+ | --- | ||
+ | Server certificate | ||
+ | -----BEGIN CERTIFICATE----- | ||
+ | MIIGUTCCBTmgAwIBAgIQcWa4ozN875XturRmQfOj3DANBgkqhkiG9w0BAQsFADCB | ||
+ | kDELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G | ||
+ | A1UEBxMHU2FsZm9yZDEaMBgGA1UEChMRQ09NT0RPIENBIExpbWl0ZWQxNjA0BgNV | ||
+ | BAMTLUNPTU9ETyBSU0EgRG9tYWluIFZhbGlkYXRpb24gU2VjdXJlIFNlcnZlciBD | ||
+ | ... | ||
+ | </ | ||
linux/centos/email/check-connectivity.txt · Last modified: 2023/07/04 19:36 by 127.0.0.1