ok so I run cold email at my agency. across all our clients combined, april was 265,127 sends out the door. figured i'd write this up because every cold email post i see is either someone selling a course or someone who sent 500 emails calling themselves an expert.
before anything else: i'm not going to talk about open rates and you shouldn't take anyone who talks about them seriously. they've been cooked since pixel-blocking went mainstream and anyone still optimizing on them is fooling themselves. apple, gmail, outlook all eat the pixel before it ever reports back. open rate is a number you can show a client and feel good. it isn't a number that books revenue.
here's what we actually track:
- reply rate: 3.7%
- "interested" replies (positive intent, not OOO or "remove me"): roughly 1 in 400
- meetings booked from interested replies: about 1 in 3
so on 265k emails that translates to ~9,800 replies, ~660 interested conversations, and ~220 meetings booked. that's the funnel that pays the bills. everything else is theater.
things that actually moved the number in april:
1. list quality is 80% of the game
if your bounce rate is above 2% your sending domains are cooked, full stop. we run every list through a paid waterfall verifier (multiple providers stacked) and STILL drop another 8-15% on top of that as questionable. costs more, ships less, books more.
also: kill every generic mailbox in your list before you press go. info@, sales@, contact@, hello@, support@, marketing@, careers@. nobody who can sign a contract reads those. they're shared inboxes monitored by interns or by literally no one. they crater your reply rate, inflate your bounces, and worst of all they hit spam complaints way harder than personal mailboxes because the people checking them have zero context for who you are. just nuke them.
2. ten minutes or you lose the lead
if "interested" comes in at 9:14am and you respond at 1:30pm you've already lost most of the energy. our reps run rotating coverage during business hours and the rule is 10 minutes max to first reply. doesn't have to be a perfect reply. just be there.
3. if you have a phone number, CALL after they reply. don't email.
this one i can't say loudly enough. if you have the direct dial or mobile and they just emailed you back, pick up the phone within 10 minutes instead of typing a response. connect rate is wildly higher than a cold dial because they literally just thought about you 90 seconds ago. they're at their desk, they have context, the conversation is already half-warm.
we book 2-3x more meetings doing phone follow-up on email replies vs the email-only path. it's not close.
4. one inbox, one job, low volume
25 emails per inbox per day, max. yes that's low. yes you need a lot of inboxes. the placement classifiers at google and microsoft in 2026 are merciless and pushing 50+ on a single mailbox starts you sliding into promotions or worse within a week. we run 4-6 sending subdomains per client, 2-3 inboxes per subdomain, all on aged accounts (8 weeks minimum before they touch real prospects).
microsoft tenants are noticeably harder to land in this year than google. plan accordingly.
5. your subject line is not clever
short. lowercase. 2 to 4 words. "quick question" still works. "intro" works. "{first name}" works. anything that smells like a campaign dies. no caps, no brackets, no emojis, no curiosity-gap nonsense.
6. body under 60 words
if you can't say it in 60 you don't know what you're saying. one sentence of why-them, one sentence of why-now, one ask. done.
cut "hope this finds you well." cut "i came across your profile." cut "i noticed you're hiring." cut "saw you guys raised a series B congrats." every single one of those openers has been used to death and pattern-matches to spam in the prospect's brain before they finish the line.
7. the AI personalization era is over and it's not coming back
2024-2025 everyone was scraping linkedin and stuffing a fake compliment into line one. it worked for about 6 months and then every buyer on earth learned what it looks like. our best performing campaigns this april had ZERO scraped personalization in the body and just nailed the segmentation upstream. better targeting beats fake personalization every single time. write one good email to a tight list instead of 50 mediocre "personalized" ones to a wide one.
8. three follow-ups, then stop
reply rate falls off a cliff after the third touch. our sequence is initial + 2 follow-ups over about 9 days. break-up email optional. anything past that is just annoying people and dragging your domain reputation down.
stuff that DIDN'T work for us this month:
- video personalization (looms etc) - way too much time per send for the lift
- weekend sending - no, your prospect is not quietly hoping for a saturday pitch
- linkedin connection request before the first email - getting flagged faster than it used to
- long detailed value-prop emails - the longer the email the lower the reply, every single time
- "merge tag" first lines that try to sound human - prospects can smell them now
happy to answer questions, will hang in the comments for a while.