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Provider matching
Match sender and recipient providers when possible.
Trust
Built around user-owned inboxes and practical sending controls.
Sonar uses explicit SMTP and IMAP connections, mailbox testing, provider matching, and rotation to support healthier outreach behavior.
Mailbox data flow stays understandable.
SMTP sends outreach. IMAP fetches replies. Campaign lead state updates only when replies match campaign leads.
- Credentials are used for user-requested mailbox actions.
- Production should protect credentials with appropriate encryption.
- Users remain responsible for outreach compliance.
SMTP sendtested
IMAP reply fetchmanual
Campaign lead updatematched
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Mailbox rotation
Spread sends across selected campaign mailboxes.
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Best-time suggestions
Use contact location to guide better send windows.