NetWorker: 백업 이메일 알림이 수신되지 않음 "Connect to SMTP host failed: No such file or directory"

• 운영 체제 기반 이메일 명령은 정책/워크플로 수준에서 구성되지만 완료/실패 시 이메일 알림이 수신되지 않습니다.
• 워크플로우 "메시지 표시"에서 "connect to SMTP host failed: No such file or directory"

MM/DD/YYYY HH:MM:SS Starting Protection Policy 'Server Protection' workflow 'Server backup'.
MM/DD/YYYY HH:MM:SS Starting action 'Server Protection/Server backup/Server db backup' with command: 'nsrdbsave -l 1'.
MM/DD/YYYY HH:MM:SS Action 'Server Protection/Server backup/Server db backup's log will be in 'C:\Program Files\EMC NetWorker\nsr\logs\policy\Server Protection\Server backup\Server db backup_449081.raw'.
MM/DD/YYYY HH:MM:SS Action 'Server Protection/Server backup/Server db backup' succeeded.
MM/DD/YYYY HH:MM:SS Starting action 'Server Protection/Server backup/Expiration' with command: 'nsrim -MXq'.
MM/DD/YYYY HH:MM:SS Action 'Server Protection/Server backup/Expiration's log will be in 'C:\Program Files\EMC NetWorker\nsr\logs\policy\Server Protection\Server backup\Expiration_449095.raw'.
connect to SMTP host failed: No such file or directory
connect to SMTP host failed: No such file or directory
MM/DD/YYYY HH:MM:SS Action 'Server Protection/Server backup/Expiration' succeeded.
MM/DD/YYYY HH:MM:SS Workflow 'Server Protection/Server backup' succeeded.

1. NetWorker 서버의 운영 체제에서 명령줄에서 이메일을 성공적으로 전송해야 합니다.

4. NetWorker 서버가 ICMP ping을 통해 메일 서버에 도달해야 합니다. ping mailserver-name
5. NetWorker 서버가 메일 서버의 SMTP 포트(포트 25)에 도달해야 합니다. nsrports -t mailserver-name -p 25

C:\Windows\system32>nsrports -t mailserver.domain.com -p 25
Forward lookup for mailserver
Query time:              0.001 sec
Canonical name (CNAME):  mailserver.domain.com
Address (A):             10.0.0.2
Connect to port 25:      Succeeded (0.088 sec)

Reverse lookup for 10.0.0.2
Query time:              0.000 sec
Name:                    mailserver.domain.com