And BTW, the k9mail 5.203 update made no difference for me.
Am Montag, 6. Februar 2017 18:01:09 UTC+1 schrieb TE:
>
> Even though this likely will not help your case - I think I tracked the
> cause of my problem to a sufficient extent, as follows:
>
> For the recipient in question, the e-mail address stored in my Android
> contact DB ("[email protected]") had a case difference w.r.t. the
> e-mail listed in the OpenPGP key DB ("[email protected]").
>
> Now formally, mailbox identifiers are indeed considered case-sensitive
> (see [1] for some RFC-level analysis). Therefore, the K-9 Mail/OpenKeychain
> combo was technically right to tell me that no key was known for
> "john.doe".
>
> On the other hand, lots of organizations have their mail servers
> configured to ignore such case differences, with the effect that people are
> quite used to having them ignored.
> Like e.g. my contact who, based on this assumtion, decided to capitalize
> his name in the e-mail address he attached to his PGP key - even though he
> had used and circulated only the all-lowercase variant of his e-mail
> address earlier.
> Or like me, so that it took me quite some time to realize what the heck
> went wrong.
>
> Anyway, the problem vanished after I modified the address in the contacts
> DB - to the capitalized version, which isn't correct but in my specific
> case luckily works.
> This is not a general solution, but was my only option as the key DB
> entries cannot be modified.
>
> In conclusion, I think the best way for K-9 Mail/OpenKeychain to treat
> this situation would be to first try the current (case-sensitive) mode of
> retrieval, and if that fails, attempt a case-insensitive retrieval,
> If only the latter one succeeds, a warning could appear, so the user has a
> chance to think twice wether case-equivalence is indeed intended here.
>
>
>
> [1]
> https://social.technet.microsoft.com/Forums/exchange/en-US/69f393aa-d555-4f8f-bb16-c636a129fc25/what-are-valid-and-invalid-email-address-characters?forum=exchangesvradminlegacy
>
>
>
> Am Sonntag, 5. Februar 2017 16:35:56 UTC+1 schrieb [email protected]:
>>
>> hi, i have the very same issues since k9mail 5.203 update. is that a bug
>> or a feature ;-)
>>
>> Am Donnerstag, 19. Januar 2017 17:19:02 UTC+1 schrieb TE:
>>>
>>> No ideas folks? To expand on my problem description:
>>>
>>> Following a hint in a thread on the K-9 Mail Developers List, I made
>>> sure that the recipient in question is in my Android contacts DB (earlier
>>> it had not been present there).
>>> However, I'm still not able to send this contact a PGP-encrypted mail.
>>>
>>> So now my siutuation is:
>>> - using current PlayStore versions of K-9 Mail and OpenKeychain
>>> - recipient's public key are in OpenKeychain's key DB
>>> - For my own key is present in OpenKeychain's key DB as well (albeit
>>> stripped,
>>> since I'm using an NFC OpenPGP card)
>>> - recipients e-mail (the one shown as associated to his public PGP key
>>> in OpenKeychain) is in Contacts DB
>>> - OpenKeychain is registered in K-9 account settings
>>> - K-9 has permission to access OpenKeychain
>>>
>>> Nevertheless, no recipient key is found when I try to send a newly
>>> composed mail to the receiver with encryption selected.
>>> Which necessary condition for sending encrypted mail did I miss?
>>>
>>> Best regards
>>>
>>>
>>> Am Donnerstag, 12. Januar 2017 12:15:02 UTC+1 schrieb TE:
>>>>
>>>> Hello,
>>>>
>>>>
>>>> Using current versions of K-9 and OpenKeychain from Play Store, i can
>>>> receive and decrypt encrypted mails fine. Really impressive work,
>>>>
>>>> However sending encrypted mails does currently not work for me. K-9
>>>> does not find any keys for the recippient.
>>>> I confirmed that
>>>> - the recipient's key is present in OpenKeychain's key DB
>>>> - it is marked as trusted there
>>>> - and his identity shows exactly the same e-mail address I am using
>>>> when attempting to send an encrypted e-mail
>>>> Any ideas on how to fix this, or even just how to debug what's going
>>>> on?
>>>> I already revoked and re-instantiated K9's access to openkeychain, as
>>>> per some earlier suggetsion from this list, but to no avail.
>>>>
>>>>
>>>>
>>>
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