first commit

Makefile

@@ -0,0 +1,15 @@
+all: build/qmail
+
+DEPENDS := go.sum \
+	cmd/main.go \
+	internal/config/*.go \
+	internal/mail/*.go
+
+go.sum:
+	go mod tidy
+
+build/qmail: $(DEPENDS)
+	CGO_ENABLED=0 go build -o build/qmail cmd/main.go
+
+install: build/qmail
+	install -Dm755 build/qmail /usr/local/bin