Protecting your deliverability

Deliverability decides whether your email reaches an inbox or a spam folder. It is the difference between a campaign that works and one that appears to send perfectly and produces nothing.

What Unilead handles

• Separate sending domains, so outreach never risks your main domain
• Domain and inbox setup, including authentication records
• Warm-up on every new domain
• Conservative per-inbox daily limits
• Paced sending across inboxes and across the day
• Address verification, so you do not bounce
• Automatic suppression of opt-outs and hostile gateways

What you control — and it matters more

Audience relevance. People mark mail as spam when it is irrelevant. A tight audience is a deliverability feature.

Honest copy. Fake urgency and misleading subject lines trip filters and generate complaints.

A reasonable ask. Hard pushes for a meeting get complained about more than a simple question.

Never import a purchased list. Bought lists are full of spam traps, and one trap hit can poison a domain. This is the fastest way to destroy sending reputation.

Patience during warm-up. Pushing volume before a domain is warm is the most common self-inflicted wound.

Warning signs — report these promptly

• Bounce rate climbing on a running campaign
• Warm-up scores dropping
• A mailbox showing as disconnected or at risk
• Replies stopping abruptly on a campaign that was working
• Any spam complaint or abuse notice

These are time-sensitive. Caught in a day they are recoverable; left three weeks they often mean retiring domains.

Updated on: 17/08/2026