sign-encrypt-a with split-gpg

[taran1s]

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Hash: SHA512

Dear comunity, I am trying to make work the

qubes-gpg-client -ase -r reci...@address.org -u m...@email.org

but without success. I can --clearsign nicely using the work-email
AppVM, but cannot encrypt message for a recipient (writing the message
directly in terminal).

In the work-email AppVM I execute

user@host:~$ qubes-gpg-client -sea -r sup...@mullvad.net -u
tar...@mailbox.org
gpg: 7B708E18CCE7D51F: There is no assurance this key belongs to the
named user
gpg: cannot open '/dev/tty': No such device or address

Any idea how to solve this issue?

- --
Kind regards
taran1s

gpg: 12DDA1FE5FB39C110F3D1FD5A664B90BD3BE59B3

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