Проверка почтового сервера
-> Connect to 212.57.179.199:25
220 vm5.imf.ru ESMTP MTA
-> EHLO uptimebot.ru
250-vm5.imf.ru
250-PIPELINING
250-SIZE 120971520
250-STARTTLS
250-ENHANCEDSTATUSCODES
250 8BITMIME
### STARTTLS found ###
-> STARTTLS
### STARTTLS started ok ###
-> EHLO uptimebot.ru
250-vm5.imf.ru
250-PIPELINING
250-SIZE 120971520
250-ENHANCEDSTATUSCODES
250 8BITMIME
-> quit
221 2.0.0 Bye
Сертификат сервера:220 vm5.imf.ru ESMTP MTA
-> EHLO uptimebot.ru
250-vm5.imf.ru
250-PIPELINING
250-SIZE 120971520
250-STARTTLS
250-ENHANCEDSTATUSCODES
250 8BITMIME
### STARTTLS found ###
-> STARTTLS
### STARTTLS started ok ###
-> EHLO uptimebot.ru
250-vm5.imf.ru
250-PIPELINING
250-SIZE 120971520
250-ENHANCEDSTATUSCODES
250 8BITMIME
-> quit
221 2.0.0 Bye
Subject CN: Default Cert
Valid from: 2024-12-04 14:40:33
Valid to: 2037-12-15 14:40:33
Issuer CN: Default Cert
Valid from: 2024-12-04 14:40:33
Valid to: 2037-12-15 14:40:33
Issuer CN: Default Cert
Спасибо!