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[vicky]

Hello everybody!

I'm here with a new problem. We created rulers to send e-mail  with information in reference of changes into the diferents documents to our users. Since last days this option was disabled and we found in the logs next information:

14:30:42,274 User:admin ERROR [web.bean.TemplateMailHelperBean] Failed to send email to user.name@dominio.com
org.springframework.mail.MailSendException; nested exception details (1) are:
Failed message 1:
javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
   class com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 <user.name@dominio.com>: Recipient address rejected: Mail appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to correct HELO and DNS MX settings or to get removed from DNSBLs; MTA helo: pc-07, MTA hostname: unknown[172.15.21.10] (helo/hostname mismatch)
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If we again send a mail the logs present the next:

14:48:42,768 User:admin ERROR [action.executer.MailActionExecuter] Failed to send email to [user.name]
org.springframework.mail.MailSendException; nested exception details (1) are:
Failed message 1:
javax.mail.SendFailedException: Invalid Addresses;
  nested exception is:
   class com.sun.mail.smtp.SMTPAddressFailedException: 550 5.7.1 <user.name@dominio.com>: Recipient address rejected: temporarily blocked because of previous errors - retrying too fast. penalty: 30 seconds x 0 retries.
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I hope somebody will help me.

Sincerely
Vicky!..

[mikef]

Looks like the problem is with your mail server rather than your Alfresco setup. I'd suggest you talking to whoever manages your mail server.