Should you move to a new domain or subdomain?

When to consider new domain:

• Domain is permanently blocklisted
• Recovery efforts failed repeatedly
• Domain reputation is unrecoverable

Risks of new domain:

• Loses established reputation (even if damaged)
• Requires full warmup from scratch
• Loses brand continuity with recipients
• May look like spammer behavior

Subdomain option:

• May inherit some root domain reputation
• Allows isolation of mail streams
• Maintains brand connection
• Better than completely new domain usually

Recommendation:

• Exhaust recovery options first
• Use subdomain if possible
• New domain only as last resort
• Renaming the company is drastic. Try rehabilitating the existing name first.