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Internal Mails are receiving as Phishing RRS feed

  • Question

  • Hi,

    in our environment we are generating email from our internal application.

    Mails are going to the users, but when we open in outlook we are getting error as

    "this might be a phishing message and is potentially unsafe outlook 2010". the email is valid internal application mail

    How to make that mail come as safe.


    Regards, Sidhu01

    Thursday, September 5, 2013 2:59 AM

Answers

  • Add the IP address of the line of business application to the Exchange trusted SMTP list

    Set-TransportConfig -InternalSMTPServers 192.168.0.0/24

    Obviously changing the network range(s) to suit. This range should be all the IP addresses that you trust - so not just the Exchange servers in the DMZ (as the docs say).

    Optionally, get the LOB app to do authenticated email. Authenticated email is never checked for spam. Or make a dedicated receive connector that has the Bypass Spam Filtering permission set on it.

    Brian


    Brian Reid C7 Solutions Ltd (www.c7solutions.com)

    Friday, September 6, 2013 2:00 PM
  • Hi,

    Add the sending address to the Outlook safe senders list - can be done using group policy

    Leif

    Friday, September 6, 2013 11:42 AM

All replies

  • Hi,

    Awaiting Reply.


    Regards, Sidhu01

    Friday, September 6, 2013 4:57 AM
  • Hi,

    Add the sending address to the Outlook safe senders list - can be done using group policy

    Leif

    Friday, September 6, 2013 11:42 AM
  • Add the IP address of the line of business application to the Exchange trusted SMTP list

    Set-TransportConfig -InternalSMTPServers 192.168.0.0/24

    Obviously changing the network range(s) to suit. This range should be all the IP addresses that you trust - so not just the Exchange servers in the DMZ (as the docs say).

    Optionally, get the LOB app to do authenticated email. Authenticated email is never checked for spam. Or make a dedicated receive connector that has the Bypass Spam Filtering permission set on it.

    Brian


    Brian Reid C7 Solutions Ltd (www.c7solutions.com)

    Friday, September 6, 2013 2:00 PM
  • Internal messages are those that are generated by an authenticated mailbox.

    Simply sending SMTP messages from an internal server are not considered internal, they are external to Exchange.

    Your application would need to either send via MAPI, IMAP mailbox connection, or authenticate via SMTP using a valid mailbox credential and email address.


    Tony

    Friday, August 21, 2015 12:38 PM