Floris Jansen

Went from retail manager to sending 4.5M cold emails a month. Founder at Vectify. Posting the numbers, the mistakes and the AI agents behind it.

[Floris Jansen @floris_vec]

Jan 2023: managing two retail stores
Oct 2023: teach myself cold email for a startup
Feb 2024: launch my first SaaS. It dies fast.
2024: start Vectify
2026: 4.5M cold emails a month, run with a team of AI agents

Posting the rest of it here, in public.

[Floris Jansen @floris_vec]

What are the best SMTP providers for sending volume (+4M/ month)?

[Floris Jansen @floris_vec]

@steipete Hahaha weird world we’re living in honestly

[Floris Jansen @floris_vec]

@thisiskp_ Hahaha what this is sick. Whole new level of testing I guess

[Floris Jansen @floris_vec]

@YVCN69 Yeah crazy right? That’s where it happens

[Floris Jansen @floris_vec]

Week 3 of building in public on X:

10 posts: 332 views.
45 replies on other people's posts: 11,149 views.
Best reply was 7 words. 4,346 views.
Followers: 22 to 31.

Lesson: stop waiting for an audience. Go where the conversation already is.

[Floris Jansen @floris_vec]

@Padniety You threw that coffee over the servers?

[Floris Jansen @floris_vec]

@KidousProAtLife what are you talking about

[Floris Jansen @floris_vec]

@avcoldemailer Yeah for real!

[Floris Jansen @floris_vec]

Anyone who tells you cold email deliverability is a science is selling you something.

Same setup, same copy, same list. 3 mailboxes sit at 96% health after 42 days. Their twins died.

We send 4.5M emails a month and I still can't tell you why.

[Floris Jansen @floris_vec]

Sometimes I stand still for a second, take a breath and think of how hard life would have been without https://t.co/fvW43WcoKp

Then I'm happy it exists

[Floris Jansen @floris_vec]

https://t.co/X5dp80Bs1g

[Floris Jansen @floris_vec]

@coldemailkid No I'm considering them burnt because they go to spam

[Floris Jansen @floris_vec]

I burned about $10K in 2 weeks on domains that are now useless.

Bought 200 in one day. Same provider, similar names, same redirect. The filters connected the dots fast.

Now we buy 2-3 a day and test everything. Expensive way to learn patience.

[Floris Jansen @floris_vec]

@shiri_shh I’ll keep using granola

[Floris Jansen @floris_vec]

What is happening here…?

[Claude @claudeai]

Introducing Claude Meetings: add Claude to your team’s video call and it builds docs, whiteboards, and other artifacts with you while you’re still talking.

Starting to roll out in beta on Team and Enterprise plans.

[Floris Jansen @floris_vec]

@MegOfficiall How companies die in spirit and practice

[Floris Jansen @floris_vec]

@claudeai These guys are coming for the whole world

[Floris Jansen @floris_vec]

Jensen Huang just got fired/ stepped doen.

Although it’s a crazy story,
It does not have ANY impact on my life at this time.

Though my LinkedIn is already filled with it, and for all we know this turns out to be my most viewed post because of the news.

But yeah I don’t understand why it’s such a big thing.

[Floris Jansen @floris_vec]

@orbitboyzz Yeah for sure, that is the biggest thing

[Floris Jansen @floris_vec]

@erden_xi Depends on what it's on, but yeah that would be insanly educational I think

[Floris Jansen @floris_vec]

@heyyyyyieeee