Send WordPress email through SparkPost
SparkPost, now part of Bird, is a high-volume sending platform with deep delivery analytics. It suits larger sites and stores that want detailed insight into what happens after a message leaves WordPress.
- SMTP, through Custom SMTP
How BooleanSMTP sends through SparkPost
Through the Custom SMTP connection
In BooleanSMTP, add a mailer, choose Custom SMTP, and enter SparkPost’s SMTP server below with your SparkPost SMTP login. Logging, the fallback, retries and alerts work exactly as they do for every other connection.
| SMTP host | Port | Encryption |
|---|---|---|
| smtp.sparkpostmail.com | 587 | TLS |
| smtp.sparkpostmail.com | 2525 | TLS |
| smtp.eu.sparkpostmail.com | 587 | TLS |
| smtp.eu.sparkpostmail.com | 2525 | TLS |
- Username
SMTP_Injection, exactly as written- Password
- An API key with the Send via SMTP permission
Use smtp.eu.sparkpostmail.com for a SparkPost EU account. SparkPost is now part of Bird: an account opened on bird.com sends through us1.smtp.bird.com or eu1.smtp.bird.com (ports 587, 2525 or 465), with the username bird and an API key that can send email.
Checked against SparkPost’s SMTP documentation.
Before you connect
Add and verify your sending domain in SparkPost and create an API key with permission to send over SMTP. SparkPost’s SMTP login is the fixed username SMTP_Injection with that key as the password.
Setup guide: Custom SMTP connectionsPair it with a fallback
A second provider as the fallback covers a revoked key or an account under review.
When SparkPost refuses a message, BooleanSMTP tries your fallback connection at once, logs which one delivered it, and alerts you on Slack, Discord or Telegram only if every attempt fails. See the whole path
What SparkPost receives
Only what sending needs: each message (recipients, subject, body, headers, attachments) and the credentials you enter for the connection, sent to SparkPost when WordPress sends an email. BooleanSMTP stores those credentials encrypted in your own database. Read SparkPost’s terms and privacy policy.