Moore, Patrick:
> All,
>
> I've recently implemented the address_verify_map to mitigate some
> verification problems we were having with a cloud provider. I had
> to remove one entry in this cache. After using postmap -s to export
> the contents to file, remove the offending entry, and run postmap
> again to recreate the file, I lost approximately 20,000 entries
> in the cache.
Editing the cache is not supported. That would require sending
messages to the verify daemon, and such code does not exist at this
time. The verify daemon locks the file for exclusive access and bad
things will happen when an open file is changed.
> When running postmap to recreate the file, all of these "duplicates"
> were removed. Is this normal behavior? Is postfix case-sensitive
> with regards to recipient verification on inbound mail?
RFC 5321 section 2.4 says:
[SMTP command] Verbs and argument values [...] are not case
sensitive, with the sole exception in this specification of a
mailbox local-part [...]
I did not write code to case-fold the domain portions. That would
be an optimization to save some space. There is also some risk of
false positives and false negatives; Postfix does know how downstream
software handles case differences.
You're welcome to contribute code to case-fold domain portions, but
you must not use strchr().
Wietse
