If we have a list of 50k people in our database and want to avoid to send an email to all 50.000 contacts at once (and avoid to be considered as a spam) is there a way in Marketo that the email get's send out in 'batches'? e.g. first batch to people where last name starts with A-C, 2nd batch D-F, etc.
Because we have also hundreds contacts in our database using ´the same domain (e.g. @ABC.com) we hope by sending this batch emails we avoid to get into the spam filter of these big companies.