Start with the question you need to answer:
- How is a connection chosen? Follow the order used for an outgoing message.
- How can I use multiple mailers? Set up distinct From addresses and compare common routing scenarios in BooleanSMTP Free.
- Why can only one connection use a From address? Resolve a sender conflict while saving or activating a connection.
- What happens when a send fails? Understand immediate fallback and later retries.
- Can I test without sending real email? Capture messages in Email Logs with simulation mode.
- Where can I keep provider credentials? Use supported configuration storage instead of the database.