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https://issues.apache.org/jira/browse/JAMES-4171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18057772#comment-18057772
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Benoit Tellier commented on JAMES-4171:
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> all the other security countermeasures seem to be implemented that way 🤷♂
Let me politely disagree
Be it verifyIdentity or relay:
- The code implements it as a hook
- bundled by default
- And does not expose the hook to end user but simpler properties in
smtpserver.xml
As a user oblivious to SMTP inner architecture I indeed prefer a built in
option rather than having to seek doc for extension and configure one with
tricky XML syntax. I think for basic option we need to provide our users some
clarity.
> Submission only server
> ----------------------
>
> Key: JAMES-4171
> URL: https://issues.apache.org/jira/browse/JAMES-4171
> Project: James Server
> Issue Type: Improvement
> Components: SMTPServer
> Reporter: Benoit Tellier
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> h3. Context
> I end up having to provide a submission only server for one of my customer.
> Problem: James bundles together the MX and submission role thus always accept
> email of remote users addressed to local users.
> This unorthodox behaviour is not a problem when combining both roles (though
> surprising!) however not being able to say "only authenticated users here"
> prevents implementing the aformentionned use case
> h3. Proposal
> Add auth.required configuration option in SMTP
> If true, then discard unauthenticated senders.
> This shall be the documented + recommended value however for
> retro-compatibility I propose to keep the legacy value as a default value.
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