Configuring MailHog

You can configure MailHog using command line options or environment variables:

Environment	Command line	Default	Description
MH_CORS_ORIGIN	-cors-origin		If set, a Access-Control-Allow-Origin header is returned for API endpoints
MH_HOSTNAME	-hostname	mailhog.example	Hostname to use for EHLO/HELO and message IDs
MH_HTTP_BIND_ADDR	-httpbindaddr	0.0.0.0:8025	Interface and port for HTTP server to bind to
MH_MONGO_COLLECTION	-mongocoll	messages	MongoDB collection name for message storage
MH_MONGO_DB	-mongodb	mailhog	MongoDB database name for message storage
MH_MONGO_URI	-mongouri	127.0.0.1:27017	MongoDB host and port
MH_SMTP_BIND_ADDR	-smtpbindaddr	0.0.0.0:1025	Interface and port for SMTP server to bind to
MH_STORAGE	-storage	memory	Set message storage: memory / mongodb