Send WooCommerce mail through SecureSMTP
Order, invoice and account emails go through SecureSMTP, because WooCommerce sends them with wp_mail(). Uses the WordPress plugin.
Setup
Add a site in SecureSMTP, install the WordPress plugin, paste the site’s API key and turn on Email Delivery.
- 1
Create a SecureSMTP account
Sign up at securessmtp.com/signup. The Free plan includes 5,000 emails a month. No card needed.
- 2
Add a site and copy its API key
Dashboard → Sites → + Add website. The last step shows the site’s API key (it starts with qcs_live_). It is shown only once, so copy it. The API keys page (/app/forms/api-keys) also shows the SMTP settings.
- 3
Install the SecureSMTP WordPress plugin
Download the zip from securessmtp.com/download. In wp-admin: Plugins → Add New Plugin → Upload Plugin → choose the zip → Install Now → Activate.
- 4
Paste the key and turn on Email Delivery
In wp-admin open SecureSMTP → Settings, paste the key into API Key and click “Save and test connection”. Then, under Email Delivery, tick “Route outgoing email through SecureSMTP” and save. Until you tick it, WordPress keeps sending with its own mailer.
- 5
Send a test email
Click “Save and send test email”. The email shows up in SecureSMTP → Mail Log in wp-admin and in the Email log in your SecureSMTP dashboard.
What you get
DKIM-signed email
Every email is signed with DKIM. With a verified sending domain it is signed as your domain, so DMARC passes for your domain.
Spam check before sending
Each email goes through a content check and an AI spam check before it leaves, so junk form posts do not go out under your name.
Email log and events
Every email is in the dashboard Email log with its status. Delivered, bounced, opened and clicked events can be posted to your server by webhook.
Retries on temporary errors
If the receiving server asks us to try again later, we keep trying and send an email.delayed event.
FAQ
How long does setup take?
A few minutes: add a site, install the plugin, paste the key and turn on Email Delivery. Then add your sending domain and publish one DNS record, because new accounts send only from their own verified domain.
Which From address will people see?
New accounts send from their own verified sending domain, so mail goes out from the address you set for that domain. Any plan, including Free, can add one. Until it is verified you can send test emails to yourself. Older accounts can keep using [email protected] for a limited time, with your sender name, and the original From address becomes the Reply-To.
What happens if SecureSMTP cannot be reached?
The plugin sends the email with WordPress’s own mailer instead and records that in its Mail Log, so site email keeps working.
Can I send from my own domain?
Yes, and new accounts need to. Any plan can add a sending domain (Free includes 1). Add it in the dashboard and publish one DKIM TXT record (the advanced setup adds two more records). Emails sent from a verified domain do not count toward the monthly limit.