Nhat Tin Logistics

Transactional emails failing to reach recipients

Every day, Nhat Tin's team sends thousands of order confirmation emails, shipping notifications, and invoices to customers and partners across the country. On paper, they looked like ordinary emails. In practice, many never made it to recipients' inboxes as they were automatically flagged as spam at the receiving gateway.

The root cause was that Nhat Tin's sending domain had not been properly authenticated against technical standards, causing receiving mail servers to question its legitimacy and automatically block delivery. The real-world impact was significant: customers never received order confirmations, partners waited on invoices that never arrived, and staff had to make manual phone calls to follow up on tasks that email was supposed to handle automatically. A workflow designed to run on its own suddenly required constant human intervention to complete.

Sensitive data continuously under attack

Alongside the outbound delivery failures, Nhat Tin's inboxes were being exploited from the opposite direction. As a company managing large volumes of financial data and partner information, Nhat Tin had become an attractive target for email-based attack campaigns. Malware hidden in seemingly innocent attachments, spoofed emails impersonating executives or partners demanding urgent action, and phishing targeting employees with access to internal systems were all appearing regularly in staff inboxes.

What made the situation particularly alarming was the scale of Nhat Tin's own network. With more than 350 dispersed post offices, a single employee at any one location opening an attachment containing ransomware could allow malicious code to spread across the entire system before the central IT team had a chance to respond. A business running 24/7 has no concept of a convenient time to handle an incident, and the ticket-and-wait support model of the previous provider only made this vulnerability more precarious.

Nhat Tin recognized that protecting its email infrastructure could no longer follow a patch-by-patch approach. What was needed was a solution capable of controlling both inbound and outbound mail flows, detecting threats before they reached end users, and enabling the IT team to centrally monitor the email activity of more than 2,500 staff. That is why Nhat Tin chose to deploy EG-Platform with VNETWORK.

Resolved at the root, deployed in 2 weeks

Before deploying the new system, VNETWORK's team of experts identified and thoroughly eliminated all malware present in Nhat Tin's existing infrastructure. All data was then migrated to a new email environment with a completely rebuilt security architecture. The entire process was completed within two weeks with zero disruption to business operations.

EG-Platform from VNETWORK delivers comprehensive protection for enterprise email systems through three layers:

• SpamGuard: A spam filter built on Machine Learning that continuously learns from each company's actual email traffic. Nhat Tin's transactional emails are classified with greater accuracy, significantly improving inbox delivery rates for customers and partners.
• ReceiveGuard: Every inbound email passes through a Virtual Area for attachment and URL inspection before it reaches the user's inbox. Sender addresses and domains are automatically verified, cutting off spoofing campaigns before they reach employees.
• SendGuard: Protects outbound email flows and supports recall of misdirected messages. Integration with DMARC and SPF authentication standards establishes Nhat Tin's domain as a trusted sending source, thereby improving inbox delivery rates and preventing outside parties from exploiting the brand in phishing attacks.

Beyond the three core layers, the system supports file attachments of up to 10 GB, password protection for outbound emails, and automatic daily reports covering all email activity including blocked threats. The IT team has the data they need to stay informed without manually chasing down individual events.

A secure system and 80% less time spent managing spam

The most visible change is in how people work. Nhat Tin employees across the entire network have virtually stopped spending time manually sorting and deleting junk mail each day. More than 80% of that time has been returned to productive work. Multiplied across more than 2,500 people, this is far from a trivial number.

On the outbound side, following proper DMARC and SPF authentication for Nhat Tin's domain, the proportion of transactional emails reaching recipients' inboxes increased noticeably. Order confirmations arrive on time, invoices no longer end up buried in junk folders, and communication cycles with partners have shortened. Manual follow-up calls have become far less frequent and are largely no longer necessary.

On the security front, Nhat Tin's defensive posture has shifted from reactive to proactive. The IT team monitors all email traffic through a single management interface and receives daily reports rather than waiting until an incident surfaces. Since migrating to EG-Platform, no serious security incidents have been recorded, even as Nhat Tin's post office network continues to expand and transaction volumes grow. VNETWORK's team provides direct support rather than routing issues through a ticket system, and when problems do arise, resolution is measured in minutes rather than hours waiting for a response.

With VNETWORK, every partnership is a commitment to uphold, not just a contract to fulfill. The trust Nhất Tín placed in us from day one is what drives us to keep improving and stay by their side through every next stage of growth.