What's the most cost-effective cold email domain setup for a micro agency?
I'm starting a small B2B engineering agency on a tight budget and setting up my outbound email infrastructure.
I understand the common advice is to keep cold outreach separate from the primary domain to protect its sender reputation.
I'm considering:
Option A - Website: Brand dot com
Cold outreach: Brand dot xyz, Brand dot co, or another TLD
Option B - Website: Brand dot com
Cold outreach: another .com variation like BrandEngineering dot com, GetBrand dot com, etc.
My questions are:
Do enterprise spam filters or corporate buyers treat newer TLDs (.xyz, .info, etc.) differently from .com in practice?
Is a second .com worth the extra cost, or do other TLDs work just as well?
What's the current best practice for B2B agencies?
The part I'm struggling to understand is the workflow.
If Brand dot com doesn't have any inboxes initially and all my outreach, replies, networking, and early client conversations happen from the outreach domain, then am I really protecting Brand dot com? It isn't sending emails, so it doesn't have a reputation to damage. Instead, I'm building the reputation of the outreach domain.
If the recommended approach is to move qualified prospects from the outreach domain to Brand dot com for meetings, proposals, and ongoing communication, then doesn't that mean I need two domains and there separate Google Workspace inboxes, which adds quite a bit of cost for a small business?
Or do most agencies simply continue the entire sales process on the outreach domain and only use Brand dot com for the website?
I feel like I'm missing something. How are agencies doing cold outbound at scale actually handling this while keeping costs reasonable?