Forum Discussion

Brad Hawkins's avatar
Brad Hawkins
Copper Contributor
Feb 14, 2018

Bad Outbound Sender Issue

Hi Team,  We're having an issue with a user who's account was comprimised and used to send spam. We've reset password and resolved the spam issue but now the user cannot send genuine emails with th...
exchange
office 365
Brian Reid's avatar
Brian Reid
MVP
Feb 15, 2018
You need to raise a support call with Microsoft to get unblocked. You also need to implement MFA on all accounts to protect against this happening again. If you have EMS or AADPremium licences you can configure MFA only to trigger on external networks if you want to allow passwords only when authenticating from the LAN
  • Brad Hawkins's avatar
    Brad Hawkins
    Copper Contributor
    Feb 15, 2018

    Thanks Brian, 


    I have a request with MS so hopefully they get back to me today. 

     

    Cheers

    Brad