feat(domains): enhance domain management UI with DNS records functionality

- Updated domain detail view to include DNS records management links.
- Added new DNS records creation form with dynamic fields based on record type.
- Implemented backend logic for creating and deleting DNS records.
- Introduced new services and messages for DNS operations.
- Refactored SMTP server initialization to streamline TLS configuration.
- Added email composition and submission utilities for better email handling.

2 files changed, 22 insertions, 19 deletions

diff --git a/utils/smtp/messages.go b/utils/smtp/messages.go
index 6441fde..1c82ab6 100644
--- a/utils/smtp/messages.go
+++ b/utils/smtp/messages.go
@@ -13,9 +13,6 @@ const (
 	NoLocalRecipients      = "No local recipients found for message from %s."
 	Recipient              = "Recipient: %s"
 	RecipientNotLocal      = "Recipient %s is not a local mailbox."
-	RelayDeliveryFailed    = "Failed to relay message to %s: %v"
-	RelayDeliverySuccess   = "Relayed message to %s via %s:%d."
-	RelayDisabled          = "Relay disabled. External recipient %s will not receive the message."
 	ServerStarting         = "%s listener started on %s."
 	SessionStarted         = "New session from %s."
 	ShutdownComplete       = "All listeners stopped."
diff --git a/utils/smtp/server.go b/utils/smtp/server.go
index 5260d20..0518ed7 100644
--- a/utils/smtp/server.go
+++ b/utils/smtp/server.go
@@ -18,28 +18,34 @@ type ServerInstance struct {
 var activeServers []ServerInstance
 
 func Start() {
+	var tlsConfig *tls.Config
+	if config.SMTP.TLSEnabled {
+		tlsConfig = loadTLSConfig()
+	}
+
 	plainAddress := fmt.Sprintf("%s:%d", config.SMTP.Host, config.SMTP.Port)
 	plainServer := createServer(plainAddress)
 	activeServers = append(activeServers, ServerInstance{Server: plainServer, Label: "SMTP"})
 	go startListener(plainServer, "SMTP", plainAddress)
 
-	if config.SMTP.TLSEnabled {
-		tlsConfig := loadTLSConfig()
-		if tlsConfig != nil {
-			smtpsAddress := fmt.Sprintf("%s:%d", config.SMTP.Host, config.SMTP.SMTPSPort)
-			smtpsServer := createServer(smtpsAddress)
-			smtpsServer.TLSConfig = tlsConfig
-			activeServers = append(activeServers, ServerInstance{Server: smtpsServer, Label: "SMTPS"})
-			go startTLSListener(smtpsServer, "SMTPS", smtpsAddress)
-
-			starttlsAddress := fmt.Sprintf("%s:%d", config.SMTP.Host, config.SMTP.StartTLSPort)
-			starttlsServer := createServer(starttlsAddress)
-			starttlsServer.TLSConfig = tlsConfig
-			starttlsServer.EnableSMTPUTF8 = true
-			activeServers = append(activeServers, ServerInstance{Server: starttlsServer, Label: "STARTTLS"})
-			go startListener(starttlsServer, "STARTTLS", starttlsAddress)
-		}
+	smtpsAddress := fmt.Sprintf("%s:%d", config.SMTP.Host, config.SMTP.SMTPSPort)
+	smtpsServer := createServer(smtpsAddress)
+	activeServers = append(activeServers, ServerInstance{Server: smtpsServer, Label: "SMTPS"})
+	if tlsConfig != nil {
+		smtpsServer.TLSConfig = tlsConfig
+		go startTLSListener(smtpsServer, "SMTPS", smtpsAddress)
+	} else {
+		go startListener(smtpsServer, "SMTPS", smtpsAddress)
+	}
+
+	starttlsAddress := fmt.Sprintf("%s:%d", config.SMTP.Host, config.SMTP.StartTLSPort)
+	starttlsServer := createServer(starttlsAddress)
+	starttlsServer.EnableSMTPUTF8 = true
+	activeServers = append(activeServers, ServerInstance{Server: starttlsServer, Label: "STARTTLS"})
+	if tlsConfig != nil {
+		starttlsServer.TLSConfig = tlsConfig
 	}
+	go startListener(starttlsServer, "STARTTLS", starttlsAddress)
 }
 
 func Shutdown() {