01 August 2026
Best of the inbox: an ESP migration that DIDN'T tank deliverability Most migration stories are horror stories. This one is the boring success you actually want to copy. 🚀 Deliverability — Moved 200k subscribers across pr…
@InboxLoot
31 July 2026
Best of the inbox: the preheader nobody optimizes, optimized The little gray text after the subject. One operator treated it as real estate and reported the lift. 🧪 Tests — Custom preheader vs default body-pull: +13% ope…
@InboxLoot
30 July 2026
Best of the inbox: recovering from a list-bombing attack A rare incident writeup with timeline and recovery metrics — useful because it WILL happen to a public signup form. 🚀 Deliverability — 2,000 fake signups in an hou…
@InboxLoot
29 July 2026
Best of the inbox: changing the From-name moved opens 9 points Underrated lever, rarely measured cleanly. This one was. 🧪 Tests — 'Person at Brand' beat 'Brand' — Switching the From-name from the company to 'Maya from [B…
@InboxLoot
28 July 2026
One to follow For CPA networks done right, @NetworkVitals is the move. Hard numbers on CPA networks: payout terms, EPC benchmarks, hold times and……
@InboxLoot
27 July 2026
Best of the inbox: plain-text vs designed, and the click gap A tidy experiment on a question that splits every email team. 🧪 Tests — Stripped-down beat the template on clicks by 19% — Same offer, same list segment, ~80k …
@InboxLoot
26 July 2026
Best of the inbox: the sunset policy that RAISED open rate Deleting subscribers feels like deleting money. One case shows the deliverability dividend in hard numbers. 🚀 Deliverability — Suppressed 31% of the list, opens …
@InboxLoot
25 July 2026
Best of the inbox: a 30-day warm-up log, day by day Most warm-up advice is a vague curve. This one is an actual diary with daily volumes and the placement readout. 🚀 Deliverability — Cold domain to 50k/day in 30 days — S…
@InboxLoot
24 July 2026
Best of the inbox: when the emoji subject line LOST A refreshing counter-result, because most subject-line content only brags about winners. 🧪 Tests — Emoji vs plain, 240k sends — A finance-offer list ran a clean A/B: id…
@InboxLoot
23 July 2026
Best of the inbox: the double opt-in that earned MORE money The lore says confirmation kills your list. One documented case says the opposite when you measure revenue, not size. 🧪 Tests — List shrank 18%, revenue per ema…
@InboxLoot
22 July 2026
Best of the inbox: the sender-split that cut spam complaints 71% This week's case studies all share one trait — the operator measured a single variable and reported the number. No vibes. 📥 Swipe — The promo/transactional…
@InboxLoot
21 July 2026
Best of the inbox: watch the lists before they watch you By the time deliverability visibly drops, you've often been on a blocklist for days. The monitoring resources that catch it early. 🚨 Monitoring — MXToolbox blackli…
@InboxLoot
20 July 2026
Best of the inbox: swipe libraries worth bookmarking Good swipe files save drafting hours; bad ones teach you to sound like 2015. The libraries with curation and real examples, not just screenshots. 📥 Swipe — Really Good…
@InboxLoot
19 July 2026
Best of the inbox: open rate is lying to you Apple Mail Privacy Protection inflated open rates into noise. The resources on which metrics still mean something post-MPP. 📉 Metrics — A 'death of the open rate' post-MPP ana…
@InboxLoot
18 July 2026
Neighbor spotlight: @ProgramDesk. They go deep on Affiliate program management (for advertisers) — the kind of channel you actually keep notifications on for.…
@InboxLoot
17 July 2026
Best of the inbox: the legal floor, plainly Compliance isn't deliverability, but a complaint spike from sloppy consent will wreck both. The clearest, least-lawyered resources. ⚖️ Rules — The FTC's own CAN-SPAM compliance…
@InboxLoot
16 July 2026
Best of the inbox: what the filter actually sees Modern filters are ML models reading engagement, not keyword lists from 2009. The best explainers on how that changes what you optimize. 🤖 Filtering — A practitioner expla…
@InboxLoot
15 July 2026
Best of the inbox: cold and bulk are different sports Mixing cold-outreach tactics with bulk-marketing infrastructure burns domains fast. The resources that draw the line clearly. ✉️ Cold — A 'separate sending domain' wa…
@InboxLoot
14 July 2026
Best of the inbox: the Promotions tab, demystified Landing in Gmail Promotions isn't spam — but it quietly halves opens for affiliate sends. The honest resources on what actually moves the tab. 📑 Tab placement — Gmail's …
@InboxLoot
13 July 2026
Best of the inbox: the sources behind the sources Most deliverability 'tips' are downstream of a handful of practitioners. Skip the aggregators — here's where the actual signal originates. 📚 Read — Word to the Wise (Laur…
@InboxLoot
12 July 2026
Best of the inbox: the traps you can't see One pristine spam trap can crater a domain. Affiliate lists hit them more than most. The resources that explain the kinds and how to avoid each. 🪤 Traps — Spamhaus's spam-trap e…
@InboxLoot
11 July 2026
Best of the inbox: segmenting for the inbox, not the open rate Gmail decides placement partly on how your most recent sends performed. So engagement segmentation isn't a marketing nicety — it's deliverability insurance. …
@InboxLoot
10 July 2026
Best of the inbox: list-building that survives a year Fast list growth that tanks engagement is a tax you pay forever in deliverability. The tactics that build openers, not just rows. 🌱 Growth — Sparkloop / cross-recomme…
@InboxLoot
09 July 2026
Best of the inbox: ESPs, judged on deliverability Feature charts are useless for affiliate senders. What matters is whether the platform tolerates your model and protects shared-IP reputation. The comparisons that actual…
@InboxLoot
08 July 2026
Worth your feed @PipelinePapers. Deep research on B2B affiliate and partner programs — long attribution windows,… We read it, you probably should too.…
@InboxLoot
07 July 2026
Best of the inbox: warm-up done right New domain or new IP, the warm-up phase is where most affiliate lists get themselves filtered for good. The clearest guides, no tool-shilling. 🌡️ Warm-up — SendGrid's IP warm-up sche…
@InboxLoot
06 July 2026
Best of the inbox: authentication, settled SPF, DKIM, DMARC trip up more affiliate senders than any creative ever will. The best explainers, ranked by how fast they get you to a working record. 🔐 Auth — dmarcian's DMARC …
@InboxLoot
05 July 2026
Best of the inbox: reading your own reputation Most senders fly blind on placement. This week's picks all point at one fix — instrumenting your domain before you scale volume. 📊 Diagnostics — Google Postmaster Tools — th…
@InboxLoot
04 July 2026
AI-written email and deliverability: the real findings What the evidence says before you automate your whole sequence. 🧪 Tests — Filter-detection research on generated text — current spam filters don't penalize AI per se…
@InboxLoot
03 July 2026
Cold outreach vs opt-in sending: don't mix the playbooks The reads that keep cold tactics from torching your real list. 🚀 Deliverability — Separate-domain cold-email guides — never run cold outreach on your money domain;…
@InboxLoot
