Glossary

• Attachment repository - The "attachment repository" is a directory phplist needs for storing the attachments sent with list messages. The location of the attachment repository is defined in the configuration file (config.php) through the $attachment_repository setting.
• Backend - The Backend of PHPlist refers to all the pages viewable only by administrators (with the various functions: user, messages, system, etc.).
• Batch processing - Batch processing of messages refers to sending portions of the total number of messages within a specified time frame. If you are on a shared host, it will probably be appreciated if you don't send out loads of emails in one go. Some shared hosts maye even have put a limit to the number of messages you may send per hour or per day. To address these limits you can configure batch processing in config.php through the MAILQUEUE_BATCH_SIZE and MAILQUEUE_BATCH_PERIOD settings.
• Frontend - The Frontend of PHPlist refers to all the pages viewable by the public (such as subscribe page, preferences page, etc.), as opposed to the administrators (such as attributes, send a message, etc.).
• Throttle - Throttle refers to the send speed setting of PHPlist. To be more precise, it refers to a small delay between each sent message, in order to slow down the send speed and thus avoid overloading the server. Throttle can be configured through the MAILQUEUE_THROTTLE or the MAILQUEUE_AUTOTHROTTLE setting in config.php.

• Configuring PHPlist
• PHPlist concepts