Github user sebbASF commented on the issue:
https://github.com/apache/incubator-ponymail/issues/178
It's good that the new shortlinks are statistically unlikely to be
duplicated.
However if the old shortlink generator was ever used to shorten original
ids in anything other than a test installation, then it will have published
ambiguous short links. These need to be allowed for.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---