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None: No permission. The contact will not receive newsletters, only transaction emails (e.g. reservation confirmation mail).
Single Opt-in: Permission was simply granted, e.g. by entering an email address in a form. This method technically allows the contact to receive newsletters, but does not ensure that the email address belongs to the person who entered it.
Confirmed Opt-in: With the confirmed opt-in, a confirmation e-mail is sent to the e-mail address after registering for the newsletter. However, this does not contain an additional confirmation link as with the double opt-in, the newsletter registration is valid immediately.
Double Opt-in: With this permission, a confirmation email with a confirmation link is sent to the email address. Only when the link in the mail has been clicked and thus the interest in the entry has been confirmed, the contact can be sent.
Double Opt-in Plus: Double opt-in including consent for single user tracking. Please note: Without individual user tracking, no openings, clicks, etc. may be traced back to individual users and significant data for evaluating newsletter performance is missing. newsletter performance is missing.
Other: If no permission can be proven, the "Other procedure" method can be selected. However, this is expressly not recommended. Permission must always be proven.
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