[Kde-pim] Restrict auto-complete / check domains of email addresses

[Mark Gaiser]

On Mon, May 11, 2015 at 11:19 PM, Stephan Diestelhorst <
stephan.diestelhorst at gmail.com> wrote:

> Hi all,
>   long time user / reader here.  I just did a very stupid thing:
> sending an email with personal stuff to a public mailing list, because
> the auto-completion completed the real recipient "John Doe
> <john.doe at example.com>" with "John Doe via publi-ML
> <ml at example-ml.com>", as the first option and I did not pay not enough
> attention :-/  My question is, what technical counter-measures I can
> take to prevent this.  I would appreciate comments from devs on what
> would make sense to implement:
>
> (1) have a KMail / Akonadi plugin that checks for cross-domain emails
> / unusual combinations of recipients, recipients and subjects, vs a
> black-list / whitelist (that might also help when there are
> john.doe at work.com vs john.doe at gmail.com and I am sending from
> me at work.com); this might be coupled with the identities, and maybe
> have a public and a private / internal identity (which I do BTW)
>
> (2) use an SMTP proxy that does (1) and send mails through localhost
>
> (3) be more selective about the auto-completion ("Sources from data")
> to exclude specific addresses / specify a regexp for sort order
>
> Any pointer for related work would be great, I know that Thunderbird
> has some extensions for that.  I can, and am happy to, code something
> here.  In order to make this most applicable, I would be glad for
> pointers from folks.
>
> Thanks,
>   Stephan
>

Hi Stephan,

I know the feeling :)
I _nearly_ made the same mistake a couple of years ago. What saved me back
then was accidentally mis-clicking the send button after which i rechecked
the email and found out that i had nearly send a mail to someone that
definitely wasn't the person i had intended. Ever since then i'm using a
gmail extension that gives you 5 seconds to undo a send right after you
click send. I never needed it since, but i keep the extension on. Just in
case ;)

This is gmail i'm talking about, the website version. But the principle (a
5 second delay before actually sending) could probably be added to kmail if
it isn't possible already.

Cheers,
Mark
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