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Exchange accepting invalid email RRS feed

  • Question

  • I have a Barracuda spam filter in front of my Exchange server. It it telling me that the mail server is accepting invalid email addresses. How do I stop this?


    Your mail server is accepting invalid email. To improve the performance and accuracy of the Barracuda Spam & Virus Firewall, please configure your mail server to not accept email to invalid recipients and/or domains. You may also want to verify your LDAP server configuration.
    Relay address exists
    OK emai@somedomain.com (Valid)
    Failure email.bad@somedomain.com (Invalid)
    Monday, October 10, 2011 4:00 PM

Answers

  • On Mon, 10 Oct 2011 16:00:55 +0000, WFusco wrote:
     
    >I have a Barracuda spam filter in front of my Exchange server. It it telling me that the mail server is accepting invalid email addresses. How do I stop this? Your mail server is accepting invalid email. To improve the performance and accuracy of the Barracuda Spam & Virus Firewall, please configure your mail server to not accept email to invalid recipients and/or domains. You may also want to verify your LDAP server configuration. Relay address exists OK emai@somedomain.com (Valid) Failure email.bad@somedomain.com (Invalid)
     
    That looks like it's trying to tell you to enable recipient filtering
    and to not accept e-mail sent to addresses that aren't in the AD.
     
    Doesn't that Barracuda have a configuration option to check the RCPT
    TO addresses against the Active Directory? It looks to me as if it
    does:
    http://www.mailenable.com/kb/Content/Article.asp?ID=me020528
     
    Have a look through the manual for the Barracuda, or call their
    support folks. There's no sense in making Exchange do the lookup if
    the security device is capable of doing it.
     
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Proposed as answer by Rowen-Xu Tuesday, October 11, 2011 2:26 AM
    • Marked as answer by WFusco Tuesday, October 18, 2011 1:36 AM
    Monday, October 10, 2011 7:37 PM

All replies

  • Seems you are using suffix like @domainname.local and the mail for which your Barracuda is giving error doesn't have this suffix. If you don't need @domain.local then remove it from Email policy and then remove from accepted domain.

     

     

    thanks

    Amit Rawat

    Monday, October 10, 2011 5:01 PM
  • Sorry - I dont quite understand. I am a REAL newbe and need to be spoon fed..

     

    Monday, October 10, 2011 5:46 PM
  • On Mon, 10 Oct 2011 16:00:55 +0000, WFusco wrote:
     
    >I have a Barracuda spam filter in front of my Exchange server. It it telling me that the mail server is accepting invalid email addresses. How do I stop this? Your mail server is accepting invalid email. To improve the performance and accuracy of the Barracuda Spam & Virus Firewall, please configure your mail server to not accept email to invalid recipients and/or domains. You may also want to verify your LDAP server configuration. Relay address exists OK emai@somedomain.com (Valid) Failure email.bad@somedomain.com (Invalid)
     
    That looks like it's trying to tell you to enable recipient filtering
    and to not accept e-mail sent to addresses that aren't in the AD.
     
    Doesn't that Barracuda have a configuration option to check the RCPT
    TO addresses against the Active Directory? It looks to me as if it
    does:
    http://www.mailenable.com/kb/Content/Article.asp?ID=me020528
     
    Have a look through the manual for the Barracuda, or call their
    support folks. There's no sense in making Exchange do the lookup if
    the security device is capable of doing it.
     
    ---
    Rich Matheisen
    MCSE+I, Exchange MVP
     

    --- Rich Matheisen MCSE+I, Exchange MVP
    • Proposed as answer by Rowen-Xu Tuesday, October 11, 2011 2:26 AM
    • Marked as answer by WFusco Tuesday, October 18, 2011 1:36 AM
    Monday, October 10, 2011 7:37 PM
  • I was successful following this knowledge base from Barracuda

    https://www.barracudanetworks.com/support/knowledgebase/50160000000GkhT

    Tuesday, June 26, 2012 6:06 PM