Open Email.
Three options
Native (default)
Out of the box — RecurX sends from [email protected] (or your verified domain). Templates editable in Email Templates.
Klaviyo
Best for stores already on Klaviyo. RecurX pushes events (subscription_created, payment_failed, paused, etc.) into Klaviyo's flow engine — you build flows in Klaviyo and trigger them with RecurX events.
Mailchimp
Same pattern — events sync as Audience activity / journey triggers.
Switching
Switching provider mid-flight is non-destructive. RecurX keeps a 30-day audit of every send so you can confirm continuity.
Sender domain
Verify your domain (DKIM + SPF) under General Settings → Sender domain. Required for high-deliverability sending in Klaviyo too.