I am getting following while I am trying tos end notification mail to Lab Manager suers -
*Failed to send email. Verify the SMTP settings and try
again.*
at LabManager.Web.ControlPanel.User.EmailUsers.DoOnClickFinish() at LabManager.Web.Page.FormPage.ClickFinish()
Failed to send email: The message could not be sent to the SMTP server.
The transport error code was 0x800ccc67. The server response was 421 4.3.2
Connection rate limit exceeded. Server stack trace: \\ at LabManager.Backend.MailMan.SendEmail(String smtpServer, Boolean useAuth, String username, String password, String email_prefix, String emailTo, String subjectText, String bodyText, Boolean ignoreError) \\ at LabManager.Backend.MailMan.SendEmail(String emailTo, String subjectText, String bodyText, Boolean ignoreError) \\ at LabManager.Backend.MailMan.SendEmail(List`1 emails, String subject, String body, Boolean ignoreError) \\ at LabManager.Backend.CSecurityManager.EmailUsers(List`1 userIds, String subject, String body, Boolean ignoreErrors) \\ at LabManager.Backend.CSecurityManager.EmailUser(UserGroup userGroup, Int32 orgId, String subject, String body) \\ at System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) \\ at System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs) \\ at System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext) \\ \\ Exception rethrown at [0]: \\ at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) \\ at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) \\ at LabManager.Backend.Interfaces.ISecurityManager.EmailUser(UserGroup userGroup, Int32 orgId, String subject, String body) \\ at LabManager.Web.ControlPanel.User.EmailUsers.DoOnClickFinish()
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While If I try TEST SMTP SETTING under settings in Lab mnaager , I am able to recive notification mail.So I guess SMTP server configuration is ok.
Please suggest me what could be the reason andhow to overcome it....
I believe this is a problem with your SMTP server. The error message
"connection rate limit exceeded" means that your SMTP server denied
access because it received too many emails from VMware. This could be an
anti-spam setting or something else, but I would look at the SMTP
server first.
Which SMTP server do you use?
Here is how to configure Sendmail:
There is also another possible reason: SMTP was unable to PTR record for the sender domain name.
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