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Managing shared inboxes at a marina

14 Apr 2025

How a marina deals with shared inboxes — and what usually goes wrong.

Sender outbound email DNS lookup shared inboxes shared inboxes a backup that was… Mail server marina.com Inbox delivered

The problem: a backup that was never restored as a drill. The shared inboxes check fails for a marina.

Two-factor on the registrar account is the single highest-value thing we do for a marina when managing shared inboxes. Everything else can be rebuilt; a stolen domain cannot.

We billed a marina two hours for shared inboxes. The previous agency billed forty hours and left a backup that was never restored as a drill behind. Complexity is not expertise.

A phishing page copying a marina appeared last year. The only reason their customers could tell it apart was that shared inboxes was set up correctly on the real site.

Instead of migrating shared inboxes all at once, we ran both configurations in parallel for a week. The switch happened on a Wednesday morning — the quietest traffic window.

There is a difference between a site that loads and a site that works. shared inboxes is part of the second category for a marina.

For a marina, we wrote a three-line script that checks shared inboxes every morning and emails the owner if anything changes. Total cost: zero.

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