Roman Kozłowski

On 2 August 2026 a wave of headlines told marketers that from now on they must label everything they create with artificial intelligence as created with AI. That...

Text "JOIN" to 12345 and you've already used an SMS keyword. The word you send – JOIN – is the keyword. The number you send it to – 12345 – is the short...

The verification code you last typed into an app or a service probably didn't arrive from that app's own servers. It came from a CPaaS – a communication platform...

Omnichannel customer support connects every channel your customers use – from email, SMS, chat, WhatsApp, phone, to social – into a single, continuous experience....

TL;DR: SMS deliverability is not a single number. It is the ability of a communication system to successfully get text messages to recipients' devices, shaped by...

Every email you send passes through an SMTP server, and every SMTP connection starts with a port number. If you pick the wrong one, your messages may fail with no...

Sending email to a hundred people is fairly easy. Sending it to ten thousand or more and having it actually arrive in their inboxes is a broader infrastructure challenge. A...

A lot of email marketing strategy advice you see reads like it was written for someone who already has a functioning program – segment your list, optimize your...

Your professional email address can show up even before your subject line. In a cold outreach, a support reply, or an invoice, it's the first thing the recipient...