Со стороны сервера:
nc -zv 213.101.133.230 25 465 587 110 143 993 995
Connection to 213.101.133.230 25 port [tcp/smtp] 
succeeded!
Connection to 213.101.133.230 465 port [tcp/submissions] 
succeeded!
Connection to 213.101.133.230 587 port [tcp/submission] 
succeeded!
Connection to 213.101.133.230 110 port [tcp/pop3] 
succeeded!
Connection to 213.101.133.230 143 port [tcp/imap2] 
succeeded!
Connection to 213.101.133.230 993 port [tcp/imaps] 
succeeded!
Connection to 213.101.133.230 995 port [tcp/pop3s] 
succeeded!
Проверка https://portscaner.ru/
Порт 25 on 213.101.133.230 
закрыт!
Порт 465 on 213.101.133.230 
открыт!
Порт 587 on 213.101.133.230 
открыт!
Я так понимаю что для этого и есть альтернатива 465 и 587 и письма должны ходить.
Сертификаты выданы:
openssl s_client -starttls smtp -connect r36web.eu:587 - CONNECTED(00000003)
openssl s_client -starttls smtp -connect r36web.eu:25 - CONNECTED(00000003)
Лог 2 отправки, локальная и на реальный адрес
root@r36web:~# tail -f /var/log/exim/main.log
2024-02-02 18:44:24 1rVweN-001VzG-QO <= 
info@local.ee H=localhost [127.0.0.1] I=[127.0.0.1]:587 P=esmtpa A=auth_cram_md5:
info@local.ee S=509 id=
c37233c48eecf4e514042128def6d5b9@local.ee from <
info@local.ee> for 
info@local.ee
2024-02-02 18:44:24 1rVweN-001VzG-QO => info <
info@local.ee> R=local_user T=local_delivery
2024-02-02 18:44:24 1rVweN-001VzG-QO 
Completed
2024-02-02 18:45:09 1rVwf7-001W2A-6d <= 
info@local.ee H=localhost [127.0.0.1] I=[127.0.0.1]:587 P=esmtpa A=auth_cram_md5:
info@local.ee S=517 id=
6ddd4b6facda528111cc01310d432772@local.ee from <
info@local.ee> for 
info@ngts.ee
2024-02-02 18:45:09 1rVwf7-001W2A-6d == 
info@ngts.ee R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host for 'ngts.ee'
ClamAV - 
не стартует
			
		
				
			 
- clamav2.PNG (14.85 КБ) 13217 просмотров
 
Установленная версия - clamav base 0.103.11
root@r36web:~# dpkg -l | grep clam
ii  clamav                                     0.103.11+dfsg-0ubuntu0.22.04.1          amd64        anti-virus utility for Unix - command-line interface
ii  clamav-base                                0.103.11+dfsg-0ubuntu0.22.04.1          all          anti-virus utility for Unix - base package
ii  clamav-daemon                              0.103.11+dfsg-0ubuntu0.22.04.1          amd64        anti-virus utility for Unix - scanner daemon
ii  clamav-freshclam                           0.103.11+dfsg-0ubuntu0.22.04.1          amd64        anti-virus utility for Unix - virus database update utility
ii  clamdscan                                  0.103.11+dfsg-0ubuntu0.22.04.1          amd64        anti-virus utility for Unix - scanner client
ii  libclamav9:amd64                           0.103.11+dfsg-0ubuntu0.22.04.1          amd64        anti-virus utility for Unix - library
			
		
				
			 
- clamav.PNG (38.66 КБ) 13217 просмотров
 
root@r36web:~# cat /proc/meminfo | grep Mem
MemTotal:        7983556 kB
MemFree:         4726052 kB
MemAvailable:    6618476 kB