Features /Replay to Local Inbox
Replay any email through your local SMTP server
LocalMail.dev can re-inject any captured email back through the local SMTP server. Your application processes it again as if it had just arrived, letting you test inbound email handling repeatedly without sending a new message.
Get LocalMail.dev for $24Re-test email handling without sending again
Testing inbound email processing typically means triggering your application to send a new email each time. LocalMail.dev removes that step. Any email already in the inbox can be replayed through the local SMTP server so your application handles it again from scratch.
This is useful when debugging webhook handlers, inbound email parsers, auto-responders, or any other logic that runs when an email is received. Fix the code, replay the same email, see the result immediately.
Replay is a single click in the email viewer toolbar. The original email is re-injected unchanged, preserving all headers and attachments, and a confirmation tick appears in the toolbar when the replay completes.
- Re-inject any captured email through the local SMTP server
- Triggers your application inbound email pipeline again
- Original email delivered unchanged with all headers intact
- One-click replay from the email viewer toolbar
- Visual confirmation when replay completes
Replay to local inbox
Re-injects the original email through SMTP
Email captured
Welcome to MyApp
Replay triggered
Re-injected via SMTP
Application received
Inbound handler triggered
Frequently asked questions
What does replay to local inbox do in LocalMail.dev?
Replay to local inbox re-injects a previously captured email back through the LocalMail.dev SMTP server. Your application receives the email as if it had just arrived, letting you re-test email handling logic, webhooks, or inbound processing pipelines without triggering a new send.
When would I use replay instead of resend?
Use replay when you want your application to process an email again through its inbound pipeline. Use resend when you want to deliver the email to an external inbox via a real SMTP provider. Replay stays entirely on your local machine.
Does replay modify the original email?
No. Replay re-injects the original email as-is without modifying any headers, content, or attachments. The email that arrives in the inbox after replay is identical to the one that was captured originally.
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