CloudLink: CloudLink Mail notification does not work "Sending the email to the following server failed...."

Zusammenfassung: CloudLink Mail notification does not work "Sending the email to the following server failed...."

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Symptome

Mail notification test shows that "Sending the email to the following server failed: XXX.XXX.XXX.XXX:25"

cloudlink-errors.log: 
2023-02-20 04:39:17,377 ERROR [/cloudlink/rest/email/test (qtp1485955886-192095)] c.a.g.e.s.m.EmailNotificationServiceBean.sendTestEmail(…) (EmailNotificationServiceBean.java:179) Failed to send test email: Sending the email to the following server failed: xxxxx.xxxxx.com.xxx:25
org.apache.commons.mail.EmailException: Sending the email to the following server failed: xxxxx.xxxxx.com.xxx:25
    at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1469)
    at org.apache.commons.mail.Email.send(Email.java:1496)
...
...
...
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: mailout.optus.com.xxxxx.xxxxx.com.xxx, port: 25, response: 554
    at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2106)
    at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:712)
    at javax.mail.Service.connect(Service.java:295)
    at javax.mail.Service.connect(Service.java:176)
    at javax.mail.Service.connect(Service.java:125)
    at javax.mail.Transport.send0(Transport.java:194)
    at javax.mail.Transport.send(Transport.java:124)
    at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1459)
    ... 95 common frames omitted

Ursache

The HTTP response code 554 means that the receiving server sees something in the From or To Headers of the message, that it does not like.
There are several causes for this. An invalid mail title, or the sender has been blocked or is not in the allowlist for the receiving mail server.
In this case, the allowlist setting for the mail server was only accepting mail requests from the IPs on the allowlist.

Lösung

To resolve this issue, add the Cloudlink nodes into the allowlist for that mail server.

Betroffene Produkte

CloudLink SecureVM, CloudLink
Artikeleigenschaften
Artikelnummer: 000211326
Artikeltyp: Solution
Zuletzt geändert: 31 März 2025
Version:  6
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