Email in your browser Hot
Open your mail from any browser, on any device, with nothing to install.
Best premium mail in
Business email on your own domain, configured for deliverability from the first message. Authentication, filtering, and DNS records are handled for you.
A client, supplier, or bank that receives an invoice from a free personal mailbox reads it as improvised, not professional. In Poland's business environment, a domain-matched email address is one of the simplest signals that a company is properly established and worth trusting with a contract. Professional email is a small investment that pays back in credibility every time a message is opened.
CERT Polska recorded 658,300 reports in 2025, up 10% year-on-year, but confirmed incidents jumped from 103,400 in 2024 to 260,800 in 2025 — a 152% increase — with online fraud, mainly phishing, making up around 97% of all confirmed cases. Nearly 80,000 of those were classified specifically as phishing, roughly 30% of total incidents. Poland's Central Cybercrime Bureau (CBZC) has separately documented a patient, invoice-swap BEC pattern hitting Polish companies directly: attackers quietly read a compromised company mailbox for weeks to learn who the business trades with, then alter only the bank account number on a genuine incoming invoice — one such scheme caused over PLN 4 million in confirmed losses, with further attempted fraud worth PLN 5.5 million.
Mailbox providers score every sending domain before a message reaches an inbox. A domain without SPF, DKIM, and DMARC authentication looks unverified to these filters and gets routed to spam or blocked outright, regardless of how legitimate the sender is. Every quote, invoice, or follow-up lost this way is business the company never knew it lost.
As an EU member state, Poland applies the GDPR (RODO) alongside national implementing legislation, enforced by the Personal Data Protection Office (UODO). These rules require organizations to implement appropriate technical and organizational security measures for personal data and to report qualifying breaches without undue delay. With Poland's KSC 2.0 cybersecurity law implementing NIS2 also in progress, business email — where customer records, contracts, and payment instructions are exchanged daily — sits squarely within this framework.
Every week spent on an unverified or personal mailbox adds to the risk of impersonation, blocked mail, and BEC fraud. Polish businesses should move to a verified company domain, implement SPF, DKIM, and DMARC authentication, and require phone verification for any payment or bank-detail change requested by email. UCN Mail is built to make that shift straightforward — professional email with the authentication, security, and reliability a Polish business needs to be trusted and reach the inbox.
Open your mail from any browser, on any device, with nothing to install.
Store files and share them by link, publicly or with specific people.
Every mailbox comes with a calendar and address book that sync to any device.
Native apps that keep every mailbox in sync wherever you are.
Spam scoring, malware scanning, and phishing links stopped before delivery.
Ports 587, 993, and 995 — any client connects without a plugin.
Sender authentication configured for you, and verified on every message.
We generate the exact records for your domain and check propagation for you.
The records we hand you are the same wherever your domain is parked.
We generate the DNS records for your domain and verify them with you.
Add or remove mailboxes as your team in Poland changes.
Our team replies within 24 hours, in any timezone.
One in Three Polish SMEs Was Targeted by Cyberattacks in 2025
BIK's 2025 Anti-Fraud Report found 34.4% of Polish MŚP faced cyberattack attempts last year — up nearly 20 percentage points on the year before — and the single biggest complaint, cited by over 35% of respondents, was fake emails with payment links and fraudulent invoices. Yet 5.8% of MŚP still use no security measures at all, relying on gut instinct instead. A properly authenticated business domain closes off one of the easiest ways a scammer can convincingly fake an invoice or impersonate your business.
KSeF Ends the PDF Invoice by Email Starting April 2026
Poland's Krajowy System e-Faktur (KSeF) becomes mandatory for large taxpayers from February 1, 2026, and for virtually all other VAT-registered businesses — including sole traders and MŚP — from April 1, 2026, at which point a structured invoice sent through KSeF is the only document with legal standing; a PDF emailed to a client no longer counts, even if printed. Email still carries everything around that structured invoice — quotes, order confirmations, client correspondence — so a secure, professional inbox remains just as essential as the KSeF system itself.
Fraudsters Are Impersonating the Ministry of Finance to Steal Tax Refunds
CERT Polska documented sustained 2025 phishing campaigns targeting mailboxes on Interia, Onet, and Wirtualna Polska, using the Ministry of Finance's branding and tone to convince victims a tax refund was waiting — then walking them through a fake banking login. It's a reminder that even personal-style webmail addresses attract convincing, official-looking impersonation, and a properly secured business domain makes that harder to replicate credibly against your company specifically.
A Free Webmail Address Still Undercuts a Professional Quote
Many small Polish businesses run client correspondence through a personal Gmail, Interia, or WP.pl address, which can look informal next to a competitor emailing from [email protected]. A domain-matched address is a small, low-cost way to look as established as the business actually is.
Getting Started: What You'll Need
Have your domain name ready (or one to register), a short list of who needs a mailbox, and about 15–20 minutes to update your domain's DNS records with your registrar. UCN Mail handles domain verification and authentication setup, so your invoices and client correspondence land reliably — and are far harder for a scammer to convincingly spoof.
Included in every tier, at no extra cost.
Billing is per mailbox — add mailboxes on any tier as your team grows, and change a mailbox's tier anytime from your dashboard. There's no separate account-wide plan to manage.