fix: corretto invio da mail (scrittura diretta nel db). feat: aggiunta gestione di gruppi interni per l'invio delle mail

utils/graphMailer.js

@@ -60,7 +60,7 @@ async function getAccessToken() {
  * @param {Array}  [options.inlineImages] - [{ cid, content (base64), contentType }]
  * @returns {Promise<void>}
  */
-async function sendMail({ to, cc = [], bcc = [], subject, bodyHtml, attachments = [], inlineImages = [] }) {
+async function sendMail({ to, cc = [], bcc = [], subject, bodyHtml, attachments = [], inlineImages = [], inReplyTo, references }) {
   const sender = process.env.AZURE_MAIL_SENDER;
   if (!sender) throw new Error('AZURE_MAIL_SENDER non configurato nel .env');
 
@@ -94,6 +94,14 @@ async function sendMail({ to, cc = [], bcc = [], subject, bodyHtml, attachments
     })),
   ];
 
+  const headers = [];
+  if (inReplyTo) {
+    headers.push({ name: 'In-Reply-To', value: inReplyTo });
+  }
+  if (references) {
+    headers.push({ name: 'References', value: references });
+  }
+
   const payload = {
     message: {
       subject,
@@ -105,6 +113,7 @@ async function sendMail({ to, cc = [], bcc = [], subject, bodyHtml, attachments
       ccRecipients,
       bccRecipients,
       attachments: allAttachments,
+      internetMessageHeaders: headers.length ? headers : undefined,
     },
     saveToSentItems: false,
   };