app-MAIL-temp/templates/emails/transactional/reply-must-use-personal-email.html

{% extends "base.html" %}

{% block content %}
  {% call text() %}
    <h1>
      An attempt to send an email from your alias <b>{{ alias.email }}</b> using <b>{{ sender }}</b> is blocked.
    </h1>
  {% endcall %}

  {% call text() %}
    As a measure to protect against <b>email spoofing</b>, we have blocked an attempt to send an email from your alias <b>{{ alias.email }}</b> using <b>{{ sender }}</b>.
  {% endcall %}

  {% call text() %}
    Please note that sending from this alias only works from alias's owning mailboxes, that are
    {{ mailbox_emails|join(", ") }}
  {% endcall %}

  {% call text() %}
    If {{ sender }} can indeed send emails from your alias, you can add it to the allow list:
  {% endcall %}

  {{ render_button("Allow " + sender, authorize_address_link) }}

  {% call text() %}
    Best, <br/>
    SimpleLogin Team.
  {% endcall %}

  {{ raw_url(authorize_address_link) }}

{% endblock %}