Revert "fix(firestore-send-email) restore headers support (#2463)"

This reverts commit f7fd923.

Author: cabljac

firestore-send-email/CHANGELOG.md

@@ -1,9 +1,5 @@
 ## Version 0.2.4
 
-fix: add missing 'headers' field to the mailOptions interface
-
-docs: update documentation to include 'headers' field
-
 fix: TTL expire type "week" fixed (#2455)
 
 ## Version 0.2.3

firestore-send-email/PREINSTALL.md

@@ -18,29 +18,6 @@ You can also optionally configure this extension to render emails using [Handleb
 
 When you configure this extension, you'll need to supply your **SMTP credentials for mail delivery**. Note that this extension is for use with bulk email service providers, like SendGrid, Mailgun, etc.
 
-#### Using custom headers
-
-You can add custom headers to your emails by including a `headers` field in the document you add to the Firestore collection. The `headers` field should be an object where each key is the header name and the value is the header value.
-
-## Example JSON with Custom Headers:
-```json
-{
-  "to": ["example@example.com"],
-  "message": {
-    "subject": "Test Email with Custom Headers",
-    "text": "This is a test email to see if custom headers work.",
-    "html": "<strong>This is a test email to see if custom headers work.</strong>"
-  },
-  "headers": {
-    "X-Custom-Header": "CustomValue",
-    "X-Another-Header": "AnotherValue",
-  }
-}
-```
-
-Add this document to the Firestore mail collection to send an email with custom headers.
-You can even include headers like 'List-Unsubscribe' to allow recipients to unsubscribe from your emails.
-
 #### Firestore-Send-Email: SendGrid Categories
 
 When using SendGrid (`SMTP_CONNECTION_URI` includes `sendgrid.net`), you can assign categories to your emails.

firestore-send-email/README.md

@@ -26,29 +26,6 @@ You can also optionally configure this extension to render emails using [Handleb
 
 When you configure this extension, you'll need to supply your **SMTP credentials for mail delivery**. Note that this extension is for use with bulk email service providers, like SendGrid, Mailgun, etc.
 
-#### Using custom headers
-
-You can add custom headers to your emails by including a `headers` field in the document you add to the Firestore collection. The `headers` field should be an object where each key is the header name and the value is the header value.
-
-## Example JSON with Custom Headers:
-```json
-{
-  "to": ["example@example.com"],
-  "message": {
-    "subject": "Test Email with Custom Headers",
-    "text": "This is a test email to see if custom headers work.",
-    "html": "<strong>This is a test email to see if custom headers work.</strong>"
-  },
-  "headers": {
-    "X-Custom-Header": "CustomValue",
-    "X-Another-Header": "AnotherValue",
-  }
-}
-```
-
-Add this document to the Firestore mail collection to send an email with custom headers.
-You can even include headers like 'List-Unsubscribe' to allow recipients to unsubscribe from your emails.
-
 #### Firestore-Send-Email: SendGrid Categories
 
 When using SendGrid (`SMTP_CONNECTION_URI` includes `sendgrid.net`), you can assign categories to your emails.

firestore-send-email/functions/src/index.ts

@@ -173,7 +173,6 @@ async function deliver(ref: DocumentReference): Promise<void> {
       subject: payload.message?.subject,
       text: payload.message?.text,
       html: payload.message?.html,
-      headers: payload?.headers,
       attachments: payload.message?.attachments,
       categories: payload.categories,
       templateId: payload.sendGrid?.templateId,