Проверка почтового сервера

-> Connect to ssl://smtp.gmail.com:465
220 smtp.gmail.com ESMTP 2adb3069b0e04-55a31dadf26sm874792e87.213 - gsmtp
-> EHLO uptimebot.ru
250-smtp.gmail.com at your service, [93.157.173.90]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
-> quit
221 2.0.0 closing connection 2adb3069b0e04-55a31dadf26sm874792e87.213 - gsmtp

Subject CN: smtp.gmail.com
SubjectAltName: DNS:smtp.gmail.com
Valid from: 2025-06-23 11:41:31
Valid to: 2025-09-15 11:41:30
Issuer CN: WE2

Subject CN: WE2
Valid from: 2023-12-13 12:00:00
Valid to: 2029-02-20 17:00:00
Issuer CN: GTS Root R4

Subject CN: GTS Root R4
Valid from: 2023-11-15 06:43:21
Valid to: 2028-01-28 03:00:42
Issuer CN: GlobalSign Root CA