Hi,
I have a issue with an exchange server... users can send emails, but cannot recieve. I am getting a cannot relay error
c@mydomain.com
SMTP error from remote mail server after RCPT TO:c@mydomain.com:
host mail.mydomain.com [xx.xx.xx.xx]: 550 5.7.1 Unable to relay forc@mydoamin.com
not sure how to proceed with this, anyone give pointer?
test connectivity.com gives...
![]() | Testing inbound SMTP mail flow for domain
c@mydomain.org.uk. |
| | ExRCA failed to test inbound SMTP mail flow. |
| | ![]() | Test Steps | | | ![]() | Attempting to retrieve DNS MX records for domain mydomain.org.uk. | | | One or more MX records were successfully retrieved from DNS. | | | ![]() | Additional Details | | | MX Records Host mail.mydomain.org.uk, Preference 5 |
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![]() | Testing Mail Exchanger mail.mydomain.org.uk. | | | One or more SMTP tests failed for this Mail Exchanger. | | | ![]() | Test Steps | | | ![]() | Attempting to resolve the host name mail.mydomain.org.uk in DNS. | | | The host name resolved successfully. | | | ![]() | Additional Details | | | IP addresses returned: xx.xx.xx.xx |
|
![]() | Testing TCP port 25 on host mail.mydomain.org.uk to ensure it's listening and open. | | | The port was opened successfully. | | | ![]() | Additional Details | | | Banner received: 220 mail.mydomain..mydoamin.com Microsoft ESMTP MAIL Service, Version: 7.5.7601.17514 ready at Wed, 8 May 2013 12:07:38 +0100 |
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![]() | Analyzing SMTP Capabilities for server mail.mydomain.org.uk:25 | | | The test passed with some warnings encountered. Please expand the additional details. | | | ![]() | Additional Details | | | Transport Layer Security (TLS) is not supported on this SMTP Server. TLS is needed for many Exchange features including Hybrid configurations with Office 365.
Supported Capabilities:
250-mail.mydomain.mydoamin.com.com Hello [207.46.14.63]
250-TURN
250-SIZE 2097152
250-ETRN
250-PIPELINING
250-DSN
250-ENHANCEDSTATUSCODES
250-8bitmime
250-BINARYMIME
250-CHUNKING
250-VRFY
250 OK |
|
![]() | Attempting to send a test email message to
c@mydomain.org.uk using MX mail.carfonline.org.uk. | | | Delivery of the test email message failed. | | | ![]() | Additional Details | | | The server returned status code 550 - Mailbox unavailable. The server response was: 5.7.1 Unable to relay forc@mydomain.org.uk
Exception details:
Message: Mailbox unavailable. The server response was: 5.7.1 Unable to relay for
c@mydomain.org.uk
Type: System.Net.Mail.SmtpFailedRecipientException
Stack trace:
at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at Microsoft.Exchange.Tools.ExRca.Tests.SmtpMessageTest.PerformTestReally() |
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tai
