Проверка почтового сервера

-> Connect to mail.hosting.reg.ru:587
220 mail.hosting.reg.ru ESMTP ready
-> EHLO uptimebot.ru
250-mail.hosting.reg.ru
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-STARTTLS
250-HELP
250-AUTH PLAIN LOGIN
250 STARTTLS
### STARTTLS found ###
-> STARTTLS
### STARTTLS started ok ###
-> EHLO uptimebot.ru
250-mail.hosting.reg.ru
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-STARTTLS
250-HELP
250 AUTH PLAIN LOGIN
-> quit
221 2.0.0 Bye

Subject CN: *.hosting.reg.ru
SubjectAltName: DNS:*.hosting.reg.ru, DNS:hosting.reg.ru
Valid from: 2025-01-28 10:51:44
Valid to: 2026-03-01 10:51:43
Issuer CN: GlobalSign GCC R6 AlphaSSL CA 2023

Subject CN: GlobalSign GCC R6 AlphaSSL CA 2023
Valid from: 2023-07-19 06:43:25
Valid to: 2026-07-19 03:00:00
Issuer CN: GlobalSign

Subject CN: GlobalSign
Valid from: 2019-06-19 03:00:00
Valid to: 2028-01-28 15:00:00
Issuer CN: GlobalSign Root CA

Subject CN: GlobalSign Root CA
Valid from: 1998-09-01 16:00:00
Valid to: 2028-01-28 15:00:00
Issuer CN: GlobalSign Root CA