69 lines
3.3 KiB
Markdown
69 lines
3.3 KiB
Markdown
# Nolimit Send
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<!-- nlsnd:version 0.1.1 -->
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Chooses how WordPress and WooCommerce send email. Pick a provider — SMTP2GO,
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Brevo, Mailgun, SendGrid, Postmark, Amazon SES, Google, Microsoft — or type in
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any SMTP server, and every message the site sends goes through it.
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## The problem it was written for
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By default WordPress hands mail to the web host's own `mail()`. That is the
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mail that lands in spam, arrives from `wordpress@` a domain that has no SPF
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record for the host, or is silently dropped — and a shop only finds out when a
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customer writes to say the order confirmation never came.
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The fix is to send through a real mail service over SMTP. The plugins that do
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it are usually large, and several of them phone home or sell the upgrade on
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the same screen where the password goes. This one is a single screen.
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## What it does, and what it refuses to do
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* **Routes everything.** It configures PHPMailer, the library behind
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`wp_mail()`, so WordPress itself, WooCommerce orders and receipts, password
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resets and every other plugin's mail go through the chosen server. It is
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site-wide, not WooCommerce-only.
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* **Presets** that fill in the host, port and encryption, with a note per
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provider on what the password field really wants (Brevo wants an SMTP key,
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Google an App Password).
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* **A test message**, sent from the screen, that shows the server's own
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answer when it fails.
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* **The last failure**, kept and shown with a time, so "why did that email not
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arrive" has an answer on the screen rather than in a log nobody opens.
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* **A sender address and name**, replacing WordPress' default `wordpress@…` —
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or, if forced, every sender.
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What it refuses to do:
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* **It never touches a message's own headers.** Reply-To, Cc, List-Unsubscribe
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and anything a caller set are passed through exactly as they came.
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* **It does not queue, throttle or retry.** A failed message is recorded, not
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re-sent.
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* **It cannot report bounces or complaints.** SMTP hands a message over; whether
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it was delivered comes back, if at all, to the provider's dashboard. The
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screen says so rather than implying a delivery report.
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* **It does not do OAuth.** Google works with an App Password. Microsoft 365 is
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retiring username-and-password SMTP, and the screen says that plainly on the
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Microsoft preset — [the setup guide](SETUP.md#microsoft-365) has the dates.
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* **It stands down** when another SMTP plugin (WP Mail SMTP, FluentSMTP, Post
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SMTP, Easy WP SMTP, Brevo for WordPress) is active, and names it on the screen.
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## Documentation
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| File | For |
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| --- | --- |
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| [SETUP.md](SETUP.md) | Installing it, choosing a provider, checking it works, and what to do when mail stops. |
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| [CONTRACT.md](CONTRACT.md) | For developers: every hook, option, capability and constant — and what is deliberately absent. |
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## Good to know
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* **No telemetry**, no account, no upsell. Nothing is sent anywhere except the
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mail itself, to the server you named, and the update check against the
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public release page, which carries no credential.
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* **Updates** come from that release page rather than wordpress.org, and appear
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in **Dashboard → Updates** like any other plugin's.
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* The SMTP password is stored as typed in one option row, because WordPress has
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nowhere better to keep it. It is never printed back into the form, and it is
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removed when the plugin is deleted.
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* The strings are English only.
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