[Rtir] problems to decrypt pgp massages with base64 content-transfer-encoding

[Collector]

Hi everyone,

I'm working with RTIR 4.0.5. This version seems not decrypt, or at least
not show unencrypted, the pgp e-males which reach the platform encoding:
base64.

After searching in the documentation, I couldn't get any solution. Does
someone know how to fix this issue?

Thank you in advanced,

Vicente Revuelto