Hi Martin,

I'm not authoritative on PII policies at all, but here's a couple of things
that came to mind as I read your question.

2018-02-10 11:26 GMT+00:00 Martin Urbanec <[email protected]>:

> To prevent this tool from spamming I of course require its confirmation by
> accessing an URL with a random string (MD5 hash of user's email *and* random
> number from 1 to 100; I mean, those two things are in one hash).
>

Does this mean the URL for a given email address can be guessed in at most
100 attempts by someone who doesn't control the address? I think you'd
typically want to draw your random numbers from a much larger range, or use
as token something that was encrypted or signed with a secret only your
server knows. It would probably also make sense to make your URLs valid for
only a certain time.

However...


> Should I stop with collecting mails at all and use some WMF-maintained
> service for mass-emailing (mailman at lists.wikimedia.org maybe?) and
> make the tool to just send an email to the list itself?
>

If creating a single mailing list is an option (for instance, you don't
plan on customizing the emails per user), this seems like a very good way
to go.


>
> This question came to my mind before creating, so I do appologize for
> asking after programming.
>
> Best regards,
> Martin Urbanec
> --
> Můj kalendář najdete na https://martin.urbanec.cz/calendar.html
>
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-- 
Guilherme P. Gonçalves
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