Deliverability

What to do in the product to keep your issues arriving. The concepts behind it are in the glossary and the blog; this is the operating manual.

The two kinds of test send

Issue Mint has two test sends: a short note proving a message can leave, and the issue itself sent to one address. Neither reaches your subscribers.
What the delivery numbers mean

The funnel on an issue report, what the delivered count includes and excludes, the grouped failure reasons, and the warning on a send that mostly worked.
Bounces and complaints

What Issue Mint does with an address that bounces or reports spam, why a transient bounce changes nothing, and why the two are suppressed in different places.
Unsubscribing, and what every issue carries

The footer on every issue, the headers behind a mail client's unsubscribe button, what happens when a reader uses it, and the undo on the page they land on.

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