Both live in mailbox settings

Under Settings → Mailbox, each mailbox carries:
- Signature — with an include toggle.
- Opt-out statement — with an include toggle.
Every campaign email sent from that mailbox automatically includes whichever toggles are on. Templates stay clean — no need to paste these into template bodies.
The opt-out statement
The opt-out statement includes a clickable link. When a prospect clicks it, PersistIQ automatically marks that prospect opted_out. From that point, the prospect is excluded from further automated sends.
Compliance note: in most jurisdictions (CAN-SPAM, CASL, GDPR regimes), a clear unsubscribe mechanism is required for commercial email. Leave the opt-out toggle on for all cold sending.
The signature
Keep it short — name, role, company, and one link at most. Bloated signatures with images and long disclaimers add weight to every email and can hurt deliverability.
CRM BCC (related setting)
The same settings screen includes CRM email to bcc — set it to your CRM's logging address so every send creates an activity record in your CRM. See the Integrations collection.