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Sending mail over SMTP from Cyber Recovery fails. The notifications.log contains the following messages: [2023-05-09 11:34:49.540] [DEBUG] [notifications] [email.go:34 SendEmail()] : Entering [2023-05-09 11:34:49.540] [DEBUG] [notifications] [email.go:43 SendEmail()] : Email details: Cyber Recovery Critical Alert 3011 Sending to [cyberrecovery @ abcd . com]Email Server: xx.xx.xx.xx [2023-05-09 11:34:49.540] [DEBUG] [notifications] [email.go:83 SendEmail()] : Sending email using Unauthenticated email settings [2023-05-09 11:34:49.540] [ERROR] [notifications] [email.go:87 SendEmail()] : Unable to contact mailserverdial tcp: lookup xx.xx.xx.xx : no such host [2023-05-09 11:34:49.540] [DEBUG] [notifications] [email.go:88 SendEmail()] : Exiting
The firewall on the Cyber Recovery host does not allow traffic on port 25.
Configure a firewall rule for port 25 on the Cyber Recovery host to allow mail over SMTP. Run the following command: # iptables -I INPUT -p tcp --dport 25 -j ACCEPT Contact Dell Technical Support for more information
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