feat(service): update alias.go

Author: jurajhilje

api/internal/service/alias.go

@@ -221,6 +221,18 @@ func (s *Service) PostAlias(ctx context.Context, alias model.Alias, format strin
 		return alias, nil
 	}
 
+	// Custom alias with custom domain
+	if format == model.AliasFormatCustom {
+		alias.Name = model.GenerateAlias(format, localPart) + "@" + domain
+		alias, err = s.Store.PostAlias(ctx, alias, s.Cfg.Service.MaxDailyAliases, s.Cfg.Service.MaxInboundAliasesPerHour)
+		if err != nil {
+			log.Printf("error creating custom alias: %s", err.Error())
+			return model.Alias{}, ErrPostAlias
+		}
+
+		return alias, nil
+	}
+
 	// Standard alias
 	for range 5 {
 		alias.Name = model.GenerateAlias(format, localPart) + "@" + domain