My exact SOPs for managing cold email at an agency with 25 clients

agency_sops · 2026-04-05 · 2,780 views

Running cold email for 25 agency clients requires tight SOPs or things fall apart fast. Here's the exact operational playbook I follow every week and every month.

Weekly routine (per client, ~20 minutes each):

• Check bounce rates across all inboxes. Anything above 2% gets flagged for list quality review.
• Verify warmup is still running on all accounts. If warmup stopped on any inbox, investigate immediately.
• Review reply rates by individual inbox. Inboxes below 1.5% reply rate for 2 consecutive weeks get rotated out.
• Rotate underperforming inboxes. Pull them from campaigns, increase warmup volume, and swap in reserve inboxes.
• Pull fresh leads from Apollo based on the client's ICP filters. Verify through ZeroBounce before loading.
• Load verified leads into Smartlead campaigns. Check that sequences and schedules are correct.
• Review positive replies and forward qualified leads to the client's CRM or inbox.

Monthly routine (per client, ~45 minutes each):

• Domain health audit. Run GlockApps on a sample of inboxes. Check MXToolbox for blacklists. Verify SPF, DKIM, DMARC are still passing.
• Copy refresh. Analyze which email variants performed best. Retire underperformers. Write 2 new variants to test.
• ICP review. Look at which titles, industries, and company sizes generated the most positive replies. Refine targeting accordingly.
• Client report. Reply rates, meetings booked, pipeline generated. I use Loom videos instead of written reports because clients actually watch them.

I manage all 25 clients with one part-time VA who handles the data pulling and list verification. Everything else I do myself. PuzzleInbox handles all the infrastructure so I never touch DNS records or deal with warmup setup. That alone saves me probably 10 hours per week compared to managing infrastructure manually.