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https://issues.apache.org/jira/browse/JAMES-3758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17531500#comment-17531500
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Benoit Tellier commented on JAMES-3758:
---------------------------------------
Hello Karsten,
Sorry for the long delay for the answer. I spent a bit of time to think about
it.
- Having a mailet to be configured for this approach to work creates in my
opinion complexity. It requires users to configure it upfront in order to get
the Expires header, which could be missed. Then what to do with emails without
those headers?
- Using headers to convey information for further processing can create
"vulnerabilities", if the headers are not properly sanitized. A user could set
the Expires header to an arbitrary value and defeat the retention policy if an
unaware admin don't properly sanitize such headers at the entry of the system.
- Finally, such a strategy would require reading headers of all emails which
might come up at an expensive cost for large datasets.
IMO, we need a simpler strategy than Expires headers but both could cohabit.
For instance:
{code:java}
curl -XDELETE /messages?olderThan=1year
{code}
Would rely on the internal date
And:
{code:java}
curl -XDELETE /messages?usingExpiracyHeader=Expires
{code}
Could cohabit.
We could have a `RetentionStrategy` interface that provides the messages to be
deleted, and we could implement two Retention Strategies, and keep most of the
code in common.
> Endpoint to delete emails older than X days/months/years
> --------------------------------------------------------
>
> Key: JAMES-3758
> URL: https://issues.apache.org/jira/browse/JAMES-3758
> Project: James Server
> Issue Type: Improvement
> Components: mailbox, webadmin
> Affects Versions: 3.7.0
> Reporter: Benoit Tellier
> Priority: Major
>
> An often requested feature is to have a data cleaup mechanism to delete old
> emails.
> We can easily implement such a task in webadmin-mailbox.
> For instance:
> {code:java}
> curl -XDELETE /messages?olderThan=1year
> {code}
> Would plan a task to delete emails older than a year accross all accounts. It
> will return the count of deleted emails.
> As one of my customer is interested by this feature I might work on this.
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