Should you use secondary domains to send cold emails?

Yes, using secondary domains for cold emailing is generally recommended. Here’s why and how it can help your email strategy:

1. Protects your main domain’s reputation

• Cold emails can have higher bounce and complaint rates than transactional or opted-in emails. By using a secondary domain, you reduce the risk of damaging your primary domain’s reputation, ensuring that business-critical emails (like those to customers or partners) remain unaffected.

2. Enables focused warmup and testing

• A secondary domain allows you to build a reputation gradually with email providers through a dedicated warmup process. With tools like Warmup Inbox, you can slowly increase sending volume and engagement, which helps establish credibility specifically for cold outreach.

3. Flexibility in testing and optimization

• Secondary domains give you the freedom to test different messaging, send frequencies, and engagement strategies without impacting your primary domain. This way, you can identify what works best for cold outreach and fine-tune your approach.

4. Improves deliverability and reduces spam Ffags

• Separating cold emails onto a secondary domain helps you monitor metrics and address any deliverability issues more quickly, without affecting the deliverability of your primary domain’s emails.

Key tips for using secondary domains:

• Keep it aligned: Choose a secondary domain that’s similar to your primary one (e.g., if your main domain is company.com, use something like company-mail.com).
• Authenticate properly: Set up SPF, DKIM, and DMARC records on the secondary domain to ensure email providers recognize it as legitimate.
• Monitor metrics: Track open rates, spam complaints, and bounce rates closely. High engagement on the secondary domain still benefits your overall brand reputation.

To sum it up – using secondary domains is a smart way to isolate cold email activities, protect your primary domain’s reputation, and improve deliverability for your outreach campaigns.