Hi
I'm trying to write something like DMARC in Python to reject if the from
and return-path for the selected domain are different
Because these similar solutions like vrfydmn (in Perl) are not very
user-friendly
W dniu 28.11.2024 o 13:57, natan via Postfix-users pisze:
Hi
I have some problem with comunications postfix + python
in main.cf:
...
smtpd_restriction_classes=testowy
testowy=check_policy_service { unix:private/testowy, timeout=4s,
default_action=DUNNO }
smtpd_recipient_restrictions =
check_recipient_access inline:{{testdomain.ltd=testowy}},
#beacuse i i try run for only one domain "testdomain.ltd"
in master.cf:
testowy unix - n n - - spawn user=nobody
argv=/usr/local/sbin/from_check.py
example script who doing nothing /usr/local/sbin/from_check.py:
#!/usr/bin/python3.9
import sys
def main():
while True:
input_line = sys.stdin.readline().strip()
if not input_line:
print()
sys.stdout.flush()
continue
print("DUNNO") # REJECT, PERMIT, DUNNO
sys.stdout.flush()
if __name__ == "__main__":
main()
in log I get:
Nov 28 13:54:15 mx postfix/smtpd[2953675]: warning: missing attribute
action in input from private/testowy
Nov 28 13:54:16 mx postfix/spawn[2953684]: warning: command
/usr/local/sbin/from_check.py exit status 120
Nov 28 13:54:16 mx postfix/smtpd[2953675]: warning: missing attribute
action in input from private/testowy
Nov 28 13:54:16 mx postfix/smtpd[2953675]: warning: problem talking to
server private/testowy: Success
I think the current script doesn't work because it doesn't read data
from Postfix or respond in the expected format.
Does anyone have an example of what it should look like?
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