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

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

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症状

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

原因

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.

解决方案

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

受影响的产品

CloudLink SecureVM, CloudLink
文章属性
文章编号: 000211326
文章类型: Solution
上次修改时间: 31 3月 2025
版本:  6
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