Brad Slavin is a manager at DuoCircle, an email security company, and a published author — co-author, with Jim Dunn and John Schumann, of the SalesCoach books Common Sense Selling for Commercial Bankers and Sales Mastery. He writes here about business, technology, sales, and building companies.
I started writing at bradslavin.com years ago as a place to think out loud about the ideas that shaped how I build and work — startups, sales, the technology I was working on, and whatever else had my attention. This is the archive of that writing, brought forward to a faster, simpler home.
Published author
I'm a published author — co-author, with Jim Dunn and John Schumann, of the SalesCoach books below, built on the Common Sense Selling methodology taught at SalesCoach.com. You can find my titles on my Amazon author page.
- Common Sense Selling for Commercial Bankers — A practical sales playbook for commercial bankers, built on the SalesCoach "Common Sense Selling" methodology.
- Sales Mastery — A salesperson's guide to mastering the fundamentals of consultative selling.
Background
Before DuoCircle, I was behind NetStumbler.com, one of the original communities for Wi-Fi discovery and wireless networking.
At DuoCircle, much of my work has been acquiring and integrating email products. We acquired Dyn's legacy business — well before Oracle's later acquisition of Dyn — taking on that legacy line so Dyn could focus upmarket and grow its average revenue per user (ARPU). We've since brought Maysoft's SpamSentinel and Verisend products into the DuoCircle family too.
Now
These days I focus on email security and deliverability at DuoCircle, and I'm writing again — short, practical notes on building software businesses, working smarter instead of longer, and the tools I actually use. If that's your world too, let's connect on LinkedIn.
Recommendations
A selection of LinkedIn recommendations from clients and colleagues over the years — spanning IT and infrastructure, email and server work, SEO and marketing, and building teams.
“He's motivated, no-nonsense, and unbelievably results-oriented. If he says he'll get it done, it's done.”
“Brad is THE person I want to call when I need a tough problem solved. He cares, goes the distance, and actually seems to do it with joy.”
“Words cannot adequately express the professionalism, teamwork, timeliness and quality of Brad’s work. Brad never overpromised but always delivered more than what was expected.”
“Over the past 11 years I have turned to Brad for his innovative, out-of-the-box thinking to solve complex problems — and he has never let me down.”
“Brad understands both the business side and the technology side of things, and is equally comfortable communicating with management or systems engineers.”
“I have hired Brad several times over the last decade. He has never been anything less than honorable, knowledgeable, and professional.”
“Brad corrected the configuration of the SMTP component of our MS Exchange server and got to the root of the issue fast. He’s smart and he’s nice — uncommon traits for highly technical individuals.”
“Brad is truly one of the most creative and dedicated people I have ever met. Web and search are highly complex areas, and Brad always seems to be ahead of the curve.”
What I write about
- Email Security
- Email Deliverability
- Entrepreneurship
- SaaS
- Sales Training
What we build at DuoCircle
I work on email security and deliverability at DuoCircle. Here are the products my team builds — tools that keep email authenticated, deliverable, and safe:
- DuoCircle — The email security company behind these products — spam filtering, email forwarding, outbound SMTP, and hosted email protection for small businesses.
- DMARC Report — DMARC monitoring and reporting — analyze aggregate and forensic reports and move your domains toward enforcement (p=reject).
- AutoSPF — Automatic SPF flattening that keeps your SPF record under the 10 DNS-lookup limit and prevents PermError.
- Phish Protection — Cloud email security against phishing, spoofing, and business email compromise (BEC) for Microsoft 365 and Google Workspace.
- NuReply — AI cold-email personalization and inbox warm-up tools that build sender reputation and land emails in the inbox.
- InboxIssue — Email deliverability testing for corporate inboxes — test against Google Workspace, Office 365, and enterprise security filters.
- Mailflow Monitoring — Round-trip SMTP and IMAP monitoring that alerts you the moment your email stops flowing.
- unsent.dev — Developer email delivery platform — REST API, SMTP relay, and SDKs for transactional and marketing email at scale.