simple-login/app
1
1
Fork 0
mirror of https://github.com/simple-login/app.git synced 2024-11-10 17:35:27 +08:00
Code Issues Projects Releases Packages Wiki Activity

avoid backscatter issue when unauthorized emails are sent to reverse alias

Browse source
This commit is contained in:
Son 2022-03-16 09:06:49 +01:00
parent 93009158a8
commit cd693eda69
1 changed files with 2 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
email_handler.py
View file

@ -978,7 +978,8 @@ def handle_reply(envelope, msg: Message, rcpt_to: str) -> (bool, str):
else: else:
# only mailbox can send email to the reply-email # only mailbox can send email to the reply-email
handle_unknown_mailbox(envelope, msg, reply_email, user, alias, contact) handle_unknown_mailbox(envelope, msg, reply_email, user, alias, contact)
return False, status.E505 # return 2** to avoid Postfix sending out bounces and avoid backscatter issue
return False, status.E214
if ENFORCE_SPF and mailbox.force_spf and not alias.disable_email_spoofing_check: if ENFORCE_SPF and mailbox.force_spf and not alias.disable_email_spoofing_check:
if not spf_pass(envelope, mailbox, user, alias, contact.website_email, msg): if not spf_pass(envelope, mailbox, user, alias, contact.website_email, msg):
@ -1308,24 +1309,6 @@ def handle_unknown_mailbox(
), ),
) )
# Notify sender that they cannot send emails to this address
send_email_with_rate_control(
user,
ALERT_REVERSE_ALIAS_UNKNOWN_MAILBOX,
envelope.mail_from,
f"Your email ({envelope.mail_from}) is not allowed to send emails to {reply_email}",
render(
"transactional/send-from-alias-from-unknown-sender.txt",
sender=envelope.mail_from,
reply_email=reply_email,
),
render(
"transactional/send-from-alias-from-unknown-sender.html",
sender=envelope.mail_from,
reply_email=reply_email,
),
)
def handle_bounce_forward_phase(msg: Message, email_log: EmailLog): def handle_bounce_forward_phase(msg: Message, email_log: EmailLog):
""" """