Module router 

Recipient-based message routing for the SMTP pipeline.

When an email arrives, the router decides which delivery handler should process it by matching the recipient address against a prioritized list of rules (exact address, domain, wildcard domain, catch-all). Unmatched recipients fall through to a configurable default handler.

Structs

MessageRouter

Routes incoming email messages to handlers based on recipient address rules.

RoutingRule

A single routing rule that maps a pattern to a handler.

Enums

MatchType

The type of match for a routing rule.

Functions

determine_match_type

Determines the match type from a routing rule configuration.

extract_pattern

Extracts the pattern string from a routing rule configuration.