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AI subject lines

Strong opens start with strong envelopes. Artmail generates subject and preview text alongside your HTML—then you test winners on broadcasts.

Bundled with generation

When you generate a template, AI proposes a subject line and preview text aligned to the body content.

Builder refinement

Ask for shorter subjects, more urgency, or a different angle—refinement applies to copy including the envelope.

Campaign A/B tests

For broadcasts, run subject-line experiments and let the winner roll out to the rest of the list.

Deliverability-aware tone

Combine subject strategy with deliverability habits—avoid spammy patterns and align with brand voice.

Dedicated subject-only mode

A standalone “subject line lab” focused only on envelope copy is not in the product yet—use wizard + campaigns for now.

Transactional subjects

Transactional templates support variable substitution in subjects so receipts and alerts stay personalized.

Generate a full email—including the subject

Use the AI wizard for templates with subject suggestions, then launch A/B tests from campaigns when you are ready.

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