Can you apply a sub signature to internal or external recipients only, within a formula?

Signatures can be applied to external or internal recipients only, by setting the Sub-Signature type to Internal Users or External Users, but you may only want these settings to apply under certain criteria. You can achieve this by including the Internal\ External setting within a formula.

To create a sub-signature for internal or external recipients based on a formula, a look-up called intext is available which can be set to int or extl. This look-up will return the text @true or @false for use within Notes Formulas.

e.g. @if((!IM_PTFUser!) & (!intext type="extl"!);@true;@false)

intext type = 'int' is the equivalent of the sub-signature type Internal Users
intext type = 'extl' is the equivalent of the sub-signature type External Users
 

Mix of Internal and external recipients results in both Internal and External sub signatures being applied