internal/

Package aliases implements an email aliases resolver.

Package auth implements authentication services for chasquid.

Package config implements the chasquid configuration.

Package courier implements various couriers for delivering messages.

Package domaininfo implements a domain information database, to keep track of things we know about a particular domain.

Package dovecot implements functions to interact with Dovecot's authentication service.

Package envelope implements functions related to handling email envelopes (basically tuples of (from, to, data).

Package expvarom implements an OpenMetrics HTTP exporter for the variables from the expvar package.

Package haproxy implements the handshake for the HAProxy client protocol version 1, as described in https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt.

Local RPC package.

Package maillog implements a log specifically for email.

Package nettrace implements tracing of requests.

Package normalize contains functions to normalize usernames, domains and addresses.

Package protoio contains I/O functions for protocol buffers.

Package queue implements our email queue.

Package safeio implements convenient I/O routines that provide additional levels of safety in the presence of unexpected failures.

Package set implement sets for various types.

Package smtp implements the Simple Mail Transfer Protocol as defined in RFC 5321.

Package smtpsrv implements chasquid's SMTP server and connection handler.

Package sts implements the MTA-STS (Strict Transport Security), RFC 8461.

Package testlib provides common test utilities.

Package tlsconst contains TLS constants for human consumption.

Package trace extends nettrace with logging.

Package userdb implements a simple user database.