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Senderz sends on four channels. Every channel shares the same contacts, the same suppression list, the same consent model and the same compliance gates — you build the audience once and choose how to reach it.

Email

Marketing and transactional email with per-tenant DKIM, a failover provider chain and built-in open/click tracking.

SMS

Wallet-gated SMS through Israeli carriers, with approved sender IDs and STOP handling.

Web push

Self-hosted Web Push (VAPID) with per-endpoint subscriptions and revocation.

Voice

Text-to-speech voice calls as a flow node and for OTP delivery.
A contact can be subscribed to email but not SMS, or the reverse. Each channel tracks its own consent state (subscribed, unsubscribed, never_subscribed, cleaned) with its own timestamp and source. Marketing sends check the state for that channel only.

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Compliance differs by channel

Marketing SMS, voice and push to Israeli numbers are blocked during quiet hours (20:00–08:00 local) and Shabbat. Email is exempt from the legal block by product decision — the merchant decides when their marketing email fires. See Israeli compliance.

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Cost model

SMS and voice draw down your SMS credit wallet. Top it up with credit packs; the wallet refuses to go negative and refunds on hard provider failure. See SMS.