Adding "salutation" is greyed out in contact details

Hi,

i want so send personalized mass mails with em Client. To do that i need a salutation for each contact. But that option is greyed out, so i can not add this. Any hint how to solve this?

grafik

It is dependent on your contact provider. If they don’t sync the field, we don’t allow you to use it.

For example if you save your contacts in Local Folders, so not synced with a server, we allow all possible fields.

Ok, then it’s limited by M365. Thanks for your reply.