Newsletter Bounce Addon
Note: We always recommend using a professional delivery service to send your marketing email and properly manage bounces. We cannot guarantee that the extension can detect all types of bounces.
When a message is sent to an invalid or unreachable address, most of the time you will receive a delivery error message in response. If properly formatted, those error notification messages contain a set of data, called a DSN (Delivery Status Notification), with information about the type of error (temporary, permanent, etc.).
Newsletter Bounce Addon in Practice
If you use Post SMTP as SMTP plug-in
If you are using the Post SMTP plugin, please note that the "return path" set in the Newsletter Settings is not respected. If they can add an option to set that value (we should call it "Sender", but it's a bit misleading for non-techy humans), the return address should be set in that plugin.
How to configure Newsletter Bounce Addon
The extension needs a dedicated mailbox (email address) where all error messages are collected. The mailbox must be accessible using the POP3 protocol.
To instruct external parties to send error messages to the correct mailbox, you need to configure the "return path" in the main newsletter settings with the email address you created in the previous step.
Every hour, Newsletter Bounce Addon opens the mailbox, reads all the messages, analyzes them and tries to detect if there are any permanent errors reported. Extract the email address and mark it as bounced.
POP3 settings consist of a username, a password, a hostname, and a port (optional). Those parameters can be found in your provider's instructions on how to set up a generic mail client.
If the mailbox can be accessed in secure mode (TLS, SSL), you can even select the security protocol to use, but remember to set even the port (it usually differs from the standard port number 110).
Newsletter Bounce Addon.
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