feat: add email domains (#1895)

Implemented Email Domains which allows Platform/Enterprise customers to
send emails to recipients using their custom emails.

packages/lib/jobs/definitions/emails/send-signing-email.handler.ts

@@ -15,7 +15,6 @@ import { prisma } from '@documenso/prisma';
 
 import { getI18nInstance } from '../../../client-only/providers/i18n-server';
 import { NEXT_PUBLIC_WEBAPP_URL } from '../../../constants/app';
-import { FROM_ADDRESS, FROM_NAME } from '../../../constants/email';
 import {
   RECIPIENT_ROLES_DESCRIPTION,
   RECIPIENT_ROLE_TO_EMAIL_TYPE,
@@ -80,12 +79,15 @@ export const run = async ({
     return;
   }
 
-  const { branding, settings, organisationType } = await getEmailContext({
-    source: {
-      type: 'team',
-      teamId: document.teamId,
-    },
-  });
+  const { branding, emailLanguage, settings, organisationType, senderEmail, replyToEmail } =
+    await getEmailContext({
+      emailType: 'RECIPIENT',
+      source: {
+        type: 'team',
+        teamId: document.teamId,
+      },
+      meta: document.documentMeta || null,
+    });
 
   const customEmail = document?.documentMeta;
   const isDirectTemplate = document.source === DocumentSource.TEMPLATE_DIRECT_LINK;
@@ -95,9 +97,7 @@ export const run = async ({
   const { email, name } = recipient;
   const selfSigner = email === user.email;
 
-  const lang = documentMeta?.language ?? settings.documentLanguage;
-
-  const i18n = await getI18nInstance(lang);
+  const i18n = await getI18nInstance(emailLanguage);
 
   const recipientActionVerb = i18n
     ._(RECIPIENT_ROLES_DESCRIPTION[recipient.role].actionVerb)
@@ -166,9 +166,9 @@ export const run = async ({
 
   await io.runTask('send-signing-email', async () => {
     const [html, text] = await Promise.all([
-      renderEmailWithI18N(template, { lang, branding }),
+      renderEmailWithI18N(template, { lang: emailLanguage, branding }),
       renderEmailWithI18N(template, {
-        lang,
+        lang: emailLanguage,
         branding,
         plainText: true,
       }),
@@ -179,10 +179,8 @@ export const run = async ({
         name: recipient.name,
         address: recipient.email,
       },
-      from: {
-        name: FROM_NAME,
-        address: FROM_ADDRESS,
-      },
+      from: senderEmail,
+      replyTo: replyToEmail,
       subject: renderCustomEmailTemplate(
         documentMeta?.subject || emailSubject,
         customEmailTemplate,