On 18 Jun 2014, at 12:28, Luca Allodi wrote:

> I think if that was a feature, it would pretty much be malpractice? Arbitrary 
> manipulation of key assignments is not specifically allowed in RFC 4880 
> (openPGP's), although it is possible to transfer public keys to different 
> user packets.

Is it disallowed? Someone explained to me that he needs it because he has an 
older key which he personally verified but is from an older mail-address.

> The easiest and most consistent way for you to achieve this would be, I 
> think, to duplicate [email protected]'s entry in your GPG keychain by assigning to a 
> new ID [email protected] the same public key as [email protected].

Why would I need to do this?
After all I encrypt with the public from the counterparty and the counterparty 
only can decrypt it with her fitting private key.

>> 11.1 Transferable Public Keys
>> [....]
>> Each of the following User ID
>> packets provides the identity of the owner of this public key.  If
>> there are multiple User ID packets, this corresponds to multiple
>> means of identifying the same unique individual user; for example, a
>> user may have more than one email address, and construct a User ID
>> for each one.
>
> That said, I am not an expert on openPGP compliance. :-)

But that would be more like the counterparty attaches multiple user IDs to one 
key, nothing I could do for the counterparty. But since I know that the key 
from [email protected] belongs to the same person that has [email protected] I do not see, 
why I shouldn't be allowed to encrypt with the key from [email protected]

Niels

> On 17 Jun 2014, at 14:43, Niels Kobschätzki wrote:
>
>> Hi,
>>
>> I want to send a mail to someone who has two addresses: [email protected] and 
>> [email protected] (just examples). I have a public key for [email protected] and want to 
>> send an encrypted mail with this key to [email protected]. How do I do this with 
>> Mailmate. I know that it is usually possible with GPG, but how to do it in 
>> Mailmate?
>>
>> Niels_______________________________________________
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>
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