cyrus-sasl-2.1.26.tar.gz GPG signature

[DGSJ via Cyrus-sasl]

Good mornig,
Could you please inform me about the PGP signature for cyrus-sasl-2.1.26.tar.gz?

It seems that this signature is not available in the 
ftp://ftp.cyrusimap.org/cyrus-sasl/.

Thank you,

Daniel Gutiérrez