what is a sending domain and why do I need one for cold outreach
A sending domain is a dedicated email domain you use exclusively for cold outreach, separate from your main business domain. You need one because cold outreach at volume (500 to 5,000 prospects per month) carries deliverability risk; if your sequences trigger spam filters, you want that risk isolated from the domain that handles customer contracts and invoices. A warmed sending domain protects your primary domain's sender reputation while keeping your pipeline full and reply rates strong.
Evidence and detail
- Sending from a dedicated domain keeps spam complaints from blacklisting your primary business domain.
- Properly warmed sending domains consistently hit the inbox, directly improving reply rates and booked meetings.
- Multi-domain setups let you scale outreach sequences across more prospects per month without hitting per-domain sending limits.
Related reading
- /blog/how-to-warm-up-a-cold-outreach-domain
- /blog/spf-dkim-dmarc-setup-for-cold-email
- /blog/how-many-emails-can-you-send-per-day-cold-outreach
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