Hello,
I am running SA 4.0.0 on a low volume mail server.
When SA begins evaluating a message to determine whether or not it's
spam, I see the following DNS queries on my caching resolver:
23-Feb-2024 18:33:02.364 queries: info: (localhost.ca): query:
localhost.ca IN AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.365 queries: info: (localhost.ca): query:
localhost.ca IN A +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost.ca): query:
localhost.ca IN A +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost.ca): query:
localhost.ca IN AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost): query: localhost IN
AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.423 queries: info: (localhost): query: localhost IN
A +E(0) (127.0.0.1)
... so an initial lookup for A and AAAA records about: localhost.ca, a
second attempt at resolving this and then a switch to querying for the A
and AAAA records of: localhost.
The reason the query for: localhost.ca happens twice is because the
domain: localhost.ca is non-resolvable ... there are no DNS records
about it (A/AAA, etc.).
What's interesting is that this is happening on a mail server that has
a: .ca TLD. It _looks_ like SA is appending this TLD to: localhost,
queries for it and it fails and then it queries correctly for:
localhost, which succeeds.
I'd like this spurious lookup for: localhost.ca to stop ... has anyone
seen something similar - either: localhost.ca or: localhost.tld for a
mail server with another TLD (ie: mail.com -> localhost.com) ?
If others have seen this, is it result of a configuration parameter ?
Thanks,
- J
I am running SA 4.0.0 on a low volume mail server.
When SA begins evaluating a message to determine whether or not it's
spam, I see the following DNS queries on my caching resolver:
23-Feb-2024 18:33:02.364 queries: info: (localhost.ca): query:
localhost.ca IN AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.365 queries: info: (localhost.ca): query:
localhost.ca IN A +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost.ca): query:
localhost.ca IN A +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost.ca): query:
localhost.ca IN AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.422 queries: info: (localhost): query: localhost IN
AAAA +E(0) (127.0.0.1)
23-Feb-2024 18:33:02.423 queries: info: (localhost): query: localhost IN
A +E(0) (127.0.0.1)
... so an initial lookup for A and AAAA records about: localhost.ca, a
second attempt at resolving this and then a switch to querying for the A
and AAAA records of: localhost.
The reason the query for: localhost.ca happens twice is because the
domain: localhost.ca is non-resolvable ... there are no DNS records
about it (A/AAA, etc.).
What's interesting is that this is happening on a mail server that has
a: .ca TLD. It _looks_ like SA is appending this TLD to: localhost,
queries for it and it fails and then it queries correctly for:
localhost, which succeeds.
I'd like this spurious lookup for: localhost.ca to stop ... has anyone
seen something similar - either: localhost.ca or: localhost.tld for a
mail server with another TLD (ie: mail.com -> localhost.com) ?
If others have seen this, is it result of a configuration parameter ?
Thanks,
- J