Handle undisclosed recipients header (#1314)
* remove TO header if it's set to "undisclosed-recipients:;" more info on https://www.rfc-editor.org/rfc/rfc4356.txt * remove unnecessary indentation character in plain text email
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@ -1171,7 +1171,13 @@ def handle_reply(envelope, msg: Message, rcpt_to: str) -> (bool, str):
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add_or_replace_header(msg, headers.FROM, from_header)
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try:
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replace_header_when_reply(msg, alias, headers.TO)
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if str(msg[headers.TO]).lower() == "undisclosed-recipients:;":
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# no need to replace TO header
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LOG.d("email is sent in BCC mode")
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del msg[headers.TO]
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else:
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replace_header_when_reply(msg, alias, headers.TO)
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replace_header_when_reply(msg, alias, headers.CC)
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except NonReverseAliasInReplyPhase as e:
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LOG.w("non reverse-alias in reply %s %s %s", e, contact, alias)
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@ -1,11 +1,11 @@
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{% extends "base.txt.jinja2" %}
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{% block content %}
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An email from {{ from_header }} to {{ alias.email }} is put into Quarantine as it fails anti-phishing check.
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An email from {{ from_header }} to {{ alias.email }} is put into Quarantine as it fails anti-phishing check.
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You can view the email at {{ refused_email_url }}.
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This email is automatically deleted in 7 days.
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You can view the email at {{ refused_email_url }}.
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This email is automatically deleted in 7 days.
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More info about the anti-phishing measure on https://simplelogin.io/docs/getting-started/anti-phishing/
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More info about the anti-phishing measure on https://simplelogin.io/docs/getting-started/anti-phishing/
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{% endblock %}
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@ -1,19 +1,19 @@
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{% extends "base.txt.jinja2" %}
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{% block content %}
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Hi
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Hi
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Your email sent to {{ destination }} from {{ alias }} ({{ subject }}) contains an address
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which isn't a reverse-alias in the To: or Cc: field.
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Your email sent to {{ destination }} from {{ alias }} ({{ subject }}) contains an address
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which isn't a reverse-alias in the To: or Cc: field.
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The email was then directly sent to this recipient and doesn't pass by SimpleLogin.
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Unfortunately, it reveals your real mailbox address to the recipient.
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Please create a reverse alias for each recipient to make sure your mailbox stays hidden and re-send the email.
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The email was then directly sent to this recipient and doesn't pass by SimpleLogin.
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Unfortunately, it reveals your real mailbox address to the recipient.
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Please create a reverse alias for each recipient to make sure your mailbox stays hidden and re-send the email.
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In case some reverse aliases are also present in To: or Cc:, SimpleLogin won't deliver this email to the
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corresponding contacts to avoid any potential side effect. Please remove the non reverse-alias addresses and
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re-send the email.
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In case some reverse aliases are also present in To: or Cc:, SimpleLogin won't deliver this email to the
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corresponding contacts to avoid any potential side effect. Please remove the non reverse-alias addresses and
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re-send the email.
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More info about reverse-alias can be found on https://simplelogin.io/docs/getting-started/reverse-alias/
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and how to send an email from your alias on https://simplelogin.io/docs/getting-started/send-email/
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More info about reverse-alias can be found on https://simplelogin.io/docs/getting-started/reverse-alias/
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and how to send an email from your alias on https://simplelogin.io/docs/getting-started/send-email/
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{% endblock %}
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@ -1,6 +1,8 @@
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Hi!
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Thanks for getting in touch. This mailbox cannot receive any emails. If you need help, please go to https://app.simplelogin.io/dashboard/support to contact us.
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Thanks for getting in touch. This mailbox cannot receive any emails.
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If you need help, please go to https://app.simplelogin.io/dashboard/support to contact us.
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Best!
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SimpleLogin team
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@ -1,10 +1,10 @@
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{% extends "base.txt.jinja2" %}
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{% block content %}
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Unauthorized attempt to send an email to {{ contact.email }} from your alias {{ alias.email }} using
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{{ sender }} has been blocked.
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Unauthorized attempt to send an email to {{ contact.email }} from your alias {{ alias.email }} using
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{{ sender }} has been blocked.
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To protect against email spoofing, only your mailbox can send emails on behalf of your alias.
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SimpleLogin also refuses emails that claim to come from your mailbox but fail DMARC.
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To protect against email spoofing, only your mailbox can send emails on behalf of your alias.
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SimpleLogin also refuses emails that claim to come from your mailbox but fail DMARC.
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{% endblock %}
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