Email Test Tools for SPF and DKIM Secured Domains
Email Testing Tools for SPF and DKIM Secure Domains Check the spammyness of your emails with this website. It will rate your email on many factors. https://www.mail-tester.com/ Check your MX Records, your SPFs and DKIM and also probe your email server https://mxtoolbox.com/ Use Microsoft Exchange Online Powershell Tools https://docs.microsoft.com/en-us/powershell/exchange/connect-to-exchange-online-powershell?view=exchange-ps These are the main commands from powershell Install-Module -Name ExchangeOnlineManagement -RequiredVersion 2.0.4 Set-ExecutionPolicy RemoteSigned Import-Module ExchangeOnlineManagement Connect-ExchangeOnline -UserPrincipalName mike@contoso.com On Office365, Enable DKIM Signing