FortiMail best practices with a Bulk email service provider?

Hey everyone,

We’re reviewing our outbound mail flow with FortiMail and wanted to ask if anyone here is using a Bulk email service provider alongside Fortinet infrastructure for newsletters or transactional email delivery.

I’ve been testing a few services, including DigitalAka™, mainly to improve deliverability and reduce reputation issues on production mail servers. Curious to know what configurations or relay setups others are using with FortiMail.