The SendDart journal
Guides and practical notes on email automation, deliverability, and building reliable delivery into your product.
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Failed-Payment Emails: Give Recovery Context Without Repeating Stale Requests
Build failed-payment reminders that check the current invoice state, explain the recovery action and stop once payment or cancellation makes the reminder obsolete.
Refund Emails: Distinguish the Request, Approval and Settlement
Design refund notifications that distinguish a request from approval and processing, so customers understand the actual state without a premature completion claim.
Price-Change Emails: Make Effective Dates and Affected Items Clear
Create price-change emails that identify the affected item, effective date and customer-specific context without confusing a future change with a current charge.
Back-in-Stock Emails: Connect the Alert to Fresh Inventory Evidence
Design back-in-stock emails around a specific variant and fulfillment context, with fresh inventory checks and honest language about availability.
Waitlist Emails: Explain Availability Without Promising a Reserved Place
Write waitlist emails that distinguish availability from reservation, preserve eligibility rules and give recipients an accurate next step when capacity changes.
Appointment Reminder Emails: Handle Reschedules, Cancellations and Time Zones
Design appointment reminders around the latest booking revision, explicit timezone and cancellation state so delayed jobs do not send obsolete instructions.
Document-Signing Reminders: Stop When the Underlying Request Changes
Send document-signing reminders only while the correct request and signer remain active, with clear handling for revisions, withdrawal and completed signatures.
Approval Request Emails: Recheck Authority When the Recipient Acts
Build approval-request emails that identify the exact revision, require current authority at action time and handle changed or already-resolved requests clearly.
Scheduled Report Emails: Identify the Data Window and the Report Version
Design scheduled-report emails with explicit data windows, generation status and version identity so recipients can distinguish a late report from a different report.
Data Export Ready Emails: Keep Download Permissions Out of the Inbox
Send data-export readiness notices with a clear snapshot description and an authenticated retrieval path that rechecks current access before exposing the file.
Suspicious Login Emails: Give a Safe Action Without Declaring Certainty
Write suspicious-login notifications that report the observed signal, avoid false certainty and guide the recipient to a trusted, authorized security review.
Email Address Changes: Notify Both Sides Without Creating an Account Takeover Path
Design email-address changes with verified new ownership, appropriate reauthentication and clear notices to existing and proposed addresses without unsafe undo links.