Проверка почтового сервера

-> Connect to mail.oxrana-uaz-pb.ru:25
220 oxrana-uaz-pb.ru ESMTP MailEnable Service, Version: 10.53--10.53 ready at 12/09/25 05:30:21
-> EHLO uptimebot.ru
250-oxrana-uaz-pb.ru [93.157.173.90], this server offers 5 extensions
250-SIZE 40960000
250-HELP
250-XCLIENT NAME ADDR PROTO HELO
250-XSAVETOSENT
250 X-SAVETOSENT
### STARTTLS not found ###
-> quit
221 Service closing transmission channel