Business scheduling software emails sent via Google-hosted address go to spam because domain can't be whitelisted.

Google Workspace email is not whitelisted by major email providers, causing scheduling notifications to land in spam; a subdomain email (e.g., [email protected]) looks unprofessional and spammy.

Opp. Score

Severity

3Medium

Willingness to Pay

implied

Added

May 20, 2026

Workarounds Described

creates email address via web hosting provider to send scheduling notifications

Implied Software Gaps

Service that provides a whitelisted, professional subdomain for transactional email delivery from scheduling software

App Concept

DeliverInbox

DeliverInbox is a dedicated email delivery service that integrates with scheduling software to send transactional emails (confirmations, reminders) from a clean, whitelisted domain with full deliverability. It routes emails through a trusted sending infrastructure, bypassing spam filters while maintaining a professional sender address like [email protected].

Key Features

Automatic whitelisting with major email providers (Gmail, Outlook, Yahoo)
Custom subdomain with no spammy appearance (e.g., [email protected])
Seamless integration with popular scheduling software APIs
Real-time delivery analytics and bounce management

Target Users: Small to medium home service businesses using scheduling software that sends email notifications to customers

Revenue Model: Starting at $19/mo per domain for up to 1,000 emails/mo; $49/mo for unlimited emails plus priority support

Existing Solutions Mentioned

Google Workspace hosted emailHostinger web hosting email

Part of App Idea

Business scheduling software emails sent via Google-hosted address go to spam because domain can't be whitelisted.

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