I'm using ZenDesk Ticketing system in the company. ZenDesk has support email which is used by customers to send their problem requests to, thus creating a new ticket.
But we're using our own support email which is hosted on Outlook and do forwarding emails from this email to ZenDesk one.
The problem is when someone send an email to our support email, a new ticket is created and we receive an email contains a message says:
"This sender failed our fraud detection checks and may not be who they appear to be. "
I've tried to configure the SPF record as the following:
v=spf1 include:servers.mcsv.net ?all include:spf.protection.outlook.com -all include:spf.sendinblue.com mx ~all include:mail.zendesk.com ?all
But the message still appears.
Any help to fix this issue?