FAQ
Answers to common questions about BooleanSMTP — providers, multiple connections, queueing, log retention and its REST API.
General
Section titled “General”What does BooleanSMTP do?
It takes over WordPress’s wp_mail() function and sends every email your site generates — contact forms,
password resets, order receipts — through a mail provider you choose, instead of your web server.
Which providers does it support? Five mailers: Amazon SES, Google Workspace, Microsoft Outlook, Custom SMTP (any SMTP server) and PHP Mail. See Mailers.
Is my email data secure? Every credential you enter is encrypted before it’s stored.
Can I use more than one provider? Yes. Create one connection per From address: an email goes out through the connection that owns its From address, and anything else through your Default Connection. If a send fails, BooleanSMTP can retry it immediately on a second connection (Fallback Connection, in Settings → Delivery & Reliability). See One connection per sender for the full rule.
Sending
Section titled “Sending”Does BooleanSMTP queue my emails?
No — every send still goes out immediately through wp_mail(). The only thing it ever queues is a message
that already failed, and only when Retry on other connections is on: that message is retried on your
other active connections, up to 2 attempts by default. See Fallback and retries.
What happens when an email fails to send? It’s logged with the provider’s error. If you’ve set a Fallback Connection, BooleanSMTP retries through it immediately; if that also fails, and Retry on other connections is on, it’s queued for a later retry. See Troubleshooting if a send keeps failing.
How long are email logs kept? Whatever you set as the Retention Period in Settings → Logging & Retention: 7, 14, 30 (the default), 90 or 365 days. Older logs are cleared automatically.
Can I export my logs?
Yes, from the command line: wp boolean-smtp logs:export writes recent logs to a JSON file. There’s no
export button on the Email Logs page itself. See the WP-CLI reference
for its options.
Developers
Section titled “Developers”Is there a REST API? Yes, and every route needs WordPress admin access — see the REST API reference for the full list of endpoints.