Documentation/Mailboxes
Mailboxes

Mailboxes

SMTP, IMAP, provider detection, logos, tests, and active sender accounts.

Mailbox setup

Mailboxes are sender accounts used for campaign delivery and reply fetching.

  • Each mailbox stores SMTP and IMAP host, port, security mode, username, and credentials.
  • SMTP testing sends a test email to the recipient chosen by the user.
  • IMAP testing confirms the inbox can be accessed for reply matching.
  • Inactive mailboxes should not be used by campaign sending.

Provider detection

Known providers

Gmail, Outlook, Yahoo, and similar known providers can be identified and shown with provider-specific branding.

Custom domains

Custom professional emails use the site favicon through Google static favicon lookup when a provider logo is not available.

Deliverability behavior

  • Campaigns only use mailboxes explicitly included in that campaign.
  • Mailbox rotation spreads sends across selected mailboxes.
  • Provider matching tries to pair sender and recipient providers when possible, then falls back to normal rotation.