Choose a supported connection or review the limitations of IMAP/SMTP.
Understand subscription capacity and how it differs from an individual email address.
See what is handled by sending.ac and what stays in your own campaign tools.
Avoid changes that can break mailbox setup or campaign performance.
Prepare new mailboxes for at least three weeks and keep your configured limits.
Follow the configured warm-up process instead of a generic day-by-day schedule.
Keep campaign and warm-up activity within the same daily mailbox limit.
Connect a domain you own and protect existing websites and email services.
Connect your domains and sequencer, then prepare mailboxes before campaigns.
Check current checkout prices and understand the conditions for retaining an existing rate.
Know what to collect before contacting support about a sending or placement problem.