JIRA Notifications Fail Occasionally Due to '452 Too many recipients received this hour'
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症状
Occasionally, notification emails fail with a "Too many recipients" exception:
com.atlassian.mail.MailException: javax.mail.SendFailedException: Invalid Addresses; nested exception is:
class com.sun.mail.smtp.SMTPAddressFailedException: 452 Too many recipients received this hour
at com.atlassian.mail.server.impl.SMTPMailServerImpl.send(SMTPMailServerImpl.java:191)
...
原因
The return code "452" is coming from SMTP server instead of either JIRA application or Java Mail. Normally, "SMTPAddressFailedException: 452 Too many recipients received this hour" is thrown when breaching the anti-spam restriction of SMTP server regarding the maximum number of recipients that can be sent (from the SMTP server) for a specific domain in a defined time period.
Normally, customers run into this problem because JIRA isn't in a trusted domain of mail server, so the mails coming from there have to go through security gateway and pass the anti-spam check.
診断
Enable mail protocol logging to find out the route of mail transmission.
ソリューション
Configure the trusted domain of mail server to accept requests from the JIRA server. JIRA notification mails should access the SMTP server directly, without an anti-spam check.