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Joey
New Member
September 21, 2020
Question

MXToolBox - SMTP Open Relay

  • September 21, 2020
  • 3 replies
  • 5394 views

Dears,

 

Hope all is well, I got a warning on MXToolBox stating that my FortiMail might be an Open Relay, so I've enabled Recipient Address Verification to fix it and confirmed it's working by sending an email to a fake email address for the protected domain and a reject was triggered by Recipient Address Verification.

 

I opened MXToolBox and I can still see a warning for SMTP Open Relay.

 

 

Am I missing anything?

 

Thank you

    3 replies

    Bromont_FTNT
    Staff
    Staff
    September 21, 2020

    This would be under access control rules...   Policy ---> Access Control

     

    You'd need a policy in there to allow outbound mail flow, but you should make sure it's locked by IP to your internal mail server.  

    Joey
    JoeyAuthor
    New Member
    September 23, 2020

    Bromont wrote:

    This would be under access control rules...   Policy ---> Access Control

     

    You'd need a policy in there to allow outbound mail flow, but you should make sure it's locked by IP to your internal mail server.  

    Thank you Bromont, will try it out and revert back.

    Fullmoon
    New Member
    October 2, 2020

    Policy ---> Access Control-->avoid defining 0.0.0.0/ but rather define your email server private address.

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