Helpdesk: Allow custom sender email domain for ticket replies (instead of success-mail.com)

Hi Klaviyo team and community,

Currently, when replying to email tickets in Klaviyo Helpdesk, all outbound emails are sent from the Klaviyo workspace address (e.g., support-mybrand@success-mail.com).

This is problematic for several reasons:

1. Trust & Professionalism: Customers receive support emails from an unfamiliar domain (success-mail.com) instead of our brand domain. This looks unprofessional and can appear like phishing or spam.

2. Brand Consistency: Our marketing emails come from our own domain, but support replies come from a completely different domain. This creates confusion for customers.

3. Deliverability Risk: Generic domains like success-mail.com may have a higher chance of landing in spam folders compared to established branded domains.

4. Customer Confusion: When customers reply, they might reply to the wrong address or be confused about who they're communicating with.

Feature Request:
Please allow us to configure a custom sender email address/domain for Helpdesk ticket replies, similar to how we can set up a branded sending domain for marketing emails.

Is this feature on the roadmap? Are there any workarounds available?

Thank you!