install: no need to check SMTPFrom is not set (#4118)

gogs.go

@@ -16,7 +16,7 @@ import (
 	"github.com/gogits/gogs/modules/setting"
 )
 
-const APP_VER = "0.9.145.0212"
+const APP_VER = "0.9.145.0213"
 
 func init() {
 	setting.AppVer = APP_VER

routers/install.go

@@ -249,6 +249,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
 	}
 
 	// Make sure FROM field is valid
+	if len(form.SMTPFrom) > 0 {
 		_, err := mail.ParseAddress(form.SMTPFrom)
 		if err != nil {
 			ctx.Data["Err_SMTP"] = true
@@ -256,6 +257,7 @@ func InstallPost(ctx *context.Context, form auth.InstallForm) {
 			ctx.RenderWithErr(ctx.Tr("install.invalid_smtp_from", err), INSTALL, &form)
 			return
 		}
+	}
 
 	// Check logic loophole between disable self-registration and no admin account.
 	if form.DisableRegistration && len(form.AdminName) == 0 {

templates/.VERSION

@@ -1 +1 @@
-0.9.145.0212
+0.9.145.0213