From 8c4eb62360af707726f414ce9ea824e1dbda9de9 Mon Sep 17 00:00:00 2001
From: Alysson Ribeiro <15274059+sonalys@users.noreply.github.com>
Date: Wed, 6 Nov 2024 10:20:59 +0100
Subject: [PATCH] Fix(close): Access to nil variable causes panic

---
 client.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client.go b/client.go
index abb90f4..fbb28f5 100644
--- a/client.go
+++ b/client.go
@@ -996,7 +996,7 @@ func (c *Client) DialWithContext(dialCtx context.Context) error {
 // Returns:
 //   - An error if the disconnection fails; otherwise, returns nil.
 func (c *Client) Close() error {
-	if !c.smtpClient.HasConnection() {
+	if c.smtpClient == nil || !c.smtpClient.HasConnection() {
 		return nil
 	}
 	if err := c.smtpClient.Quit(); err != nil {