THE SENDAR BLOG
Notes on better email.
Practical guides, engineering decisions and the latest from Sendar.
For the people building what comes next.
Editor's picks
START HEREExplore the journal
24 STORIES24 articles
Know which app you are connecting
Clearer application identity on the consent page and more useful activity details for Sendar agent connections.
A clearer workspace for incoming email
A focused message list, more room to read, and an accessible reply composer in Sendar Inboxes.
Manage, check and receive email with Sendar
Scoped headless access, link checks before broadcasts, and a hosted inbox beta for application replies.
A new home for Sendar documentation
Searchable navigation, focused API examples and a clearer path from setup to your first integration.
Give an AI agent email tools with clear boundaries
Understand the difference between coding skills, an authenticated MCP connection and permission to send a message.
A migration library for the email service you already use
Sendar's provider-specific guides help you map your existing workflow and identify compatibility gaps before switching.
Migrate an email provider one workflow at a time
Inventory compatibility, preserve suppression decisions and use a controlled cutover with a clear rollback path.
Sending email from Next.js without exposing your API key
Keep the send operation on the server, validate the application event and use a controlled preview before live delivery.
Email attachment or download link? Choose for the reader
Compare message size, access control and document updates before adding a file to a transactional email.
Make transactional emails readable before making them elaborate
Review hierarchy, links, plain text and real-world content so customers can act on important messages.
Transactional email and broadcasts need different workflows
Use application events for individual notifications and deliberate audience review for one-to-many announcements.
Rotate an email API key without losing track of your senders
Inventory deployments, update server secrets and verify the new credential before revoking the old one.
An email API error checklist for production support
Separate invalid requests, authentication failures, quota limits and uncertain sends before deciding what to retry.
Build an email webhook consumer that can recover
Acknowledge events carefully, deduplicate processing and keep delivery updates separate from the business transaction.
Retry email requests without sending the same message twice
Use stable event identities, preserve payloads and handle uncertain outcomes carefully with Sendar's single-email idempotency support.
Accepted, sent, delivered: what an email status actually tells you
Avoid treating an HTTP success response as proof of inbox delivery. Build support and monitoring around the evidence you have.
Treat email templates as an application contract
Manage variables, fallbacks and content changes so a template edit does not quietly break a working integration.
Send payment receipts from a verified application event
Keep payment truth in your application, reconcile duplicate events and send a receipt with the information the customer needs.
Designing a password-reset email workflow with Sendar
Keep account recovery logic in your application and use the email layer to deliver a carefully scoped message.
A welcome email should follow a successful signup
Choose a useful next step, avoid duplicate welcomes and separate account verification from product onboarding.
SPF, DKIM and DMARC: three checks, different jobs
Understand what each authentication mechanism tells a receiver and how to use Sendar's DNS checker without overreading the result.
A sending-domain checklist for your first Sendar integration
Check ownership, DNS names and verification results without disrupting the email already running on your domain.
Email API or SMTP: which fits your application?
Choose an integration based on your application's capabilities, error handling and migration costs—not just the transport name.
Your first transactional email, from event to delivery
A practical path from an application event to a Sendar request, with the checks that matter before your first production send.