Good Evening,
I am running into an Intermittent receive error on Exchange 2013 RU 8 on Windows 2012. Messages will randomly error with :
The server returned status code 451 - Error in processing. The server response was: 4.7.0 Temporary server error. Please try again later. PRX5 Exception details: Message: Error in processing. The server response was: 4.7.0 Temporary server error. Please try again later. PRX5 Type: System.Net.Mail.SmtpException Stack trace: at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse) at System.Net.Mail.DataStopCommand.Send(SmtpConnection conn) at System.Net.Mail.SmtpClient.Send(MailMessage message) at Microsoft.Exchange.Tools.ExRca.Tests.SmtpMessageTest.PerformTestReally() Elapsed Time: 21538 ms.
Exchange receive logs show the following:
mail.hulbertassociates.com Microsoft ESMTP MAIL service ready at <RegionalDay-Date-24HourTimeFormat> <RegionalTimeZoneOffset>, EHLO www.testexchangeconnectivity.com, SMTPSubmit SMTPAcceptAnySender SMTPAcceptAuthoritativeDomainSender AcceptRoutingHeaders,Set Session Permissions 250-mail.hulbertassociates.com Hello [157.56.138.143], 250-SIZE 104857600, 250-PIPELINING, 250-DSN, 250-ENHANCEDSTATUSCODES, 250-STARTTLS, 250-AUTH NTLM, 250-8BITMIME, 250-BINARYMIME, 250 CHUNKING, MAIL FROM:<Admin@TestExchangeConnectivity.com>, SMTPSubmit SMTPAcceptAnySender SMTPAcceptAuthoritativeDomainSender AcceptRoutingHeaders,Set Session Permissions receiving message 250 2.1.0 Sender OK, RCPT TO:<jparks@hulbertassociates.com>, 250 2.1.5 Recipient OK, DATA, 354 Start mail input; end with <CRLF>.<CRLF>, Proxy destination(s) obtained from OnProxyInboundMessage event Message or connection acked with status Retry and response 441 4.4.1 Error encountered while communicating with primary target IP address: ""Failed to connect. Winsock error code: 10060, Win32 error code: 10060."" Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts. The last endpoint attempted was 65.102.233.138:2525" 451 4.7.0 Temporary server error. Please try again later. PRX5 , Remote(SocketError)
I am at a loss at the moment. Any suggestions would be appreciated.