An "Opt-in" contact is a contact who has recently given express permission to receive your communications. The contact has therefore voluntarily checked a box to receive your newsletters.
The following are not considered to be opt-in:
- contacts from purchased databases
- contacts from databases exchanged with a partner and collected via co-registration, etc.
- contacts found in directories
- contacts who agreed to receive your newsletter more than two years ago and with whom you have not communicated since.
Please read our Anti-Spam Policy to get a better idea of which lists are accepted by SendinBlue.