NAME

       Sympa::Spindle::TransformIncoming - Process to transform messages - first stage

DESCRIPTION

       This class executes the first stage of message transformation to be sent through the list. This stage is
       put before storing messages into archive spool (See also Sympa::Spindle::DistributeMessage).
       Transformation processes by this class are done in the following order:

       •   Executes "pre_distribute" hook of message hooks if available.

       •   Adds "X-Sympa-Topic" header field, if any message topics (see Sympa::Spool::Topic) are tagged for the
           message.

       •   Anonymizes message, if "anonymous_sender" list configuration parameter is enabled.

       •   Adds custom subject tag to "Subject" field, if "custom_subject" list configuration parameter is
           available.

       •   Enables message tracking (see Sympa::Tracking) if necessary.

       •   Removes header fields specified by "remove_headers".

       Then this class passes the message to the next stage of transformation.

CAVEAT

       •   Transformation by this class can break integrity of DKIM signature, because some header fields
           including "From", "Message-ID" and "Subject" may be altered.

SEE ALSO

       Sympa::Internals::Workflow.

       Sympa::Message, Sympa::Message::Plugin, Sympa::Spindle, Sympa::Spindle::DistributeMessage,
       Sympa::Spool::Topic, Sympa::Tracking.

HISTORY

       Sympa::Spindle::TransformIncoming appeared on Sympa 6.2.13.