MailProxy

A dead simple Mail forward proxy written in Golang.

HowTo guide

Docker

• Build it

$ make build-image

• Generate cert key files, then put it in /path/to/directory/contains/cert (Change this path with the actual path). For example:

# Key considerations for algorithm "RSA" ≥ 2048-bit
$ openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" (X25519 || ≥ secp384r1)
# https://safecurves.cr.yp.to/
# List ECDSA the supported curves (openssl ecparam -list_curves)
$ openssl ecparam -genkey -name secp384r1 -out server.key
$ openssl req -new -x509 -sha256 -key server.key -out server.crt -days 3650

• Update config.yml, you could refer an example config

• Run it (build command is suppored as well, check Makefile for more details)

$ docker run -d --name mailproxy -v /path/to/mailproxy/directory:/etc/mailproxy kienn26/mailproxy:latest

Manual

• Generate cert key files, then put it in /path/to/directory/contains/cert (Change this path with the actual path). For example:

# Key considerations for algorithm "RSA" ≥ 2048-bit
$ openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" (X25519 || ≥ secp384r1)
# https://safecurves.cr.yp.to/
# List ECDSA the supported curves (openssl ecparam -list_curves)
$ openssl ecparam -genkey -name secp384r1 -out server.key
$ openssl req -new -x509 -sha256 -key server.key -out server.crt -days 3650

• Update config file.

• Run it.

$ make build
$ ./bin/mailproxy --config.file=/path/to/directory/config-file