Cold outreach at any volume means several sending mailboxes, and adding them one form at a time is tedious. Worse, a typo in a password does not announce itself — the mailbox sits there looking configured until a campaign silently fails to send from it.
Two things changed:
- Bulk import of email configurations from a file, so setting up ten mailboxes takes one upload instead of ten forms.
- Test connection on every mailbox. It opens a real SMTP and IMAP session with the stored credentials and reports what happened, including the server's own error message when it fails.
Test at setup, not at 9am on launch day.