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Släpp (DISCARD) meddelanden 'från' spexadresser som inte lagts in som… #55

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merged 4 commits into from
Jun 26, 2023
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Släpp (DISCARD) meddelanden 'från' spexadresser som inte lagts in som… #55

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c155cd0
Släpp (DISCARD) meddelanden 'från' spexadresser som inte lagts in som…
Jun 17, 2023
2800124
Tagit bort vansinnig injektionssårbarhet. Får strukturera loggning fr…
Jun 17, 2023
8b88aa9
Parametrisera mera (mail_domain).
Jun 17, 2023
e37e6c1
Drop unnecessary imports, make code comment domain agnostic.
Jun 18, 2023
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9 changes: 7 additions & 2 deletions lissmilter.py
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Original file line number Diff line number Diff line change
Expand Up @@ -75,9 +75,14 @@ def envrcpt(self, mail_to, *str):
# Should only happen if no AssociationGroup called 'STYR' has been created yet
pass

# Check if sender is valid before discarding any emails. A user sending 'from' the current domain, to an internal list, should add this as an extra email in the database.
if not valid_sender:
self.setreply('554', '5.7.2', 'Sender <{}> not authorized for recipient ("{}"). Kontakta en ansvarig om du tycker det borde funka.'.format(self.envelope_from, to))
return Milter.REJECT
if f'@{mail_domain}' in self.envelope_from:
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# https://pymilter.org/pymilter/namespacemilter.html#a4c8bad190cb7f54cea87f1182732ce83
return Milter.DISCARD
else:
self.setreply('554', '5.7.2', 'Sender <{}> not authorized for recipient ("{}"). Kontakta en ansvarig om du tycker det borde funka.'.format(self.envelope_from, to))
return Milter.REJECT

self.change_subject = is_production_list or is_mass_list or is_summons_list

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