A sending IP is a network address used when email is delivered. Receiving systems can consider its reputation alongside the domain, authentication and recipient response.
You do not need to configure sending IPs to use sending.ac. Do not rely on an old article's fixed rotation timetable or a promise that one address guarantees delivery.
Focus on the settings you control
- Send relevant messages to verified contacts.
- Respect opt-outs and remove permanent bounces.
- Follow the sending and warm-up settings for your account.
- Avoid sudden campaign-volume changes.
If placement changes or your sequencer reports a delivery problem, share the affected domains, dates and errors with support. An IP lookup alone is not enough to diagnose why a particular message was filtered.
Powered by