Bulk mails can be sent regularly and automatically based on Jobs. Creating jobs Define the job as type "Monitor data" and select which table is to be used as the basis for the address list:
Accounts: ALL contact persons who are marked for the "Mailinglist" in the account will receive the communication from the "List with follow-up actions"
Contact person: only the contact persons as defined per input help | Action serial letter | E-mail To will receive the communication from the "List with follow-up actions"