From c86cc445ba9989badbd945c8a8d4ad59aabadd8c Mon Sep 17 00:00:00 2001
From: Santiago De la Cruz <51337247+xhit@users.noreply.github.com>
Date: Tue, 4 Jul 2023 12:05:47 -0400
Subject: [PATCH] Allow Bcc in header (#81)

Fix #38
---
 README.md | 4 +++-
 email.go  | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 61e0797..1e0c070 100644
--- a/README.md
+++ b/README.md
@@ -82,7 +82,9 @@ Go Simple Mail supports:
 
 https://pkg.go.dev/github.com/xhit/go-simple-mail/v2?tab=doc
 
-Note: by default duplicated recipients throws an error, from `v2.13.0` you can use `email.AllowDuplicateAddress = true` to avoid the check.
+Note 1: by default duplicated recipients throws an error, from `v2.13.0` you can use `email.AllowDuplicateAddress = true` to avoid the check.
+
+Note 2: by default Bcc header is not set in email. From `v2.14.0` you can use `email.AddBccToHeader = true` to add this.
 
 ## Download
 
diff --git a/email.go b/email.go
index 2aae703..0054819 100644
--- a/email.go
+++ b/email.go
@@ -32,6 +32,7 @@ type Email struct {
 	SMTPServer            *smtpClient
 	DkimMsg               string
 	AllowDuplicateAddress bool
+	AddBccToHeader        bool
 }
 
 /*
@@ -349,6 +350,11 @@ func (email *Email) AddAddresses(header string, addresses ...string) *Email {
 			return email
 		}
 
+		// add Bcc only if AddBccToHeader is true
+		if header == "Bcc" && email.AddBccToHeader {
+			email.headers.Add(header, address.String())
+		}
+
 		// add all addresses to the headers except for Bcc and Return-Path
 		if header != "Bcc" && header != "Return-Path" {
 			// add the address to the headers