This is the 12193rd most frequent Spanish word.
inviolable
"Not to be violated or dishonored; sacred or untouchable."
Here, 'inviolable' denotes that the privacy of emails cannot be breached or violated under legal protection.
La privacidad de los correos electrónicos es inviolable según la ley.
The privacy of emails is inviolable according to the law.
'Inviolable' in this context means that the agreement is binding and must not be broken or disregarded.
El acuerdo firmado entre ambas partes es considerado inviolable.
The agreement signed between both parties is considered inviolable.
This usage of 'inviolable' implies that these practices must be respected and preserved without interference.