Univik QNAP Xeams Email Server Converter

Excellent  4.8 TrustRating (118 Verified Reviews)

Convert QNAP Xeams Email Server Messages to PST, PDF, EML and More

Univik QNAP Xeams Converter reads the message files stored by the Xeams email server and converts them to PST, PDF, EML, MSG and other formats on your local Windows machine. Every mailbox, folder, attachment and metadata field is preserved. No connection to the QNAP NAS is required after you copy the Xeams data folder.

*Free trial converts the first 25 emails per folder. No registration required.

  • No NAS Required After Copy: Copy the Xeams message folders off the QNAP once, then convert on any Windows machine without a QNAP connection.
  • All Mailboxes in One Run: Batch process every user mailbox and the global archive. Each mailbox outputs as a separate PST, PDF or EML set with its original folder structure.
  • All Xeams Modes: Works with Xeams in Stand-Alone, Hybrid or Spam Firewall mode on QNAP, Windows, Linux or macOS.
  • Backup and Archiving: Convert your Xeams Good email repository to PST, PDF or EML for long-term storage independent of the NAS.

Univik QNAP Xeams Email Server Converter

EMAIL ARCHIVE ★ 2025 ★

Trusted for NAS Email Migration

IT administrators and system managers use Univik to export and archive QNAP Xeams mailboxes when decommissioning NAS hardware or migrating to cloud email.

 Xeams Email Data Extracted

 Key Features

Why Choose Univik Xeams Converter

Built for IT administrators and system managers migrating away from QNAP Xeams or archiving historical mailboxes.

No NAS required

No QNAP NAS Required After Copy

Once the Xeams message folders are copied off the QNAP using File Station, an SMB share or the Container Station volume, Univik Converter works entirely on your local Windows machine. No VPN, no NAS IP, no QTS login. This makes conversion practical when decommissioning a NAS, restoring from backup or working from a different site.

Folder structure preserved

Folder Structure Fully Preserved

Xeams organises messages by repository (Good, Possible Spam, Junk) and per-user IMAP mailboxes with Inbox, Sent, Drafts and custom folders. Univik Converter reads the full folder hierarchy and recreates it in the output. PST output mirrors the structure as Outlook folders. EML output creates matching directories. No emails are ever merged or flattened.

Batch all accounts

Batch Convert All Mailboxes

Point Univik Converter at the Xeams repository folder and run it once. Every user mailbox and the global archive is processed in sequence and generates its own output file named after the mailbox. For organisations with 50 or 500 users, this eliminates the manual effort of converting one mailbox at a time.

Attachments preserved

Attachments and Metadata Preserved

All file attachments are extracted from the Xeams message files and embedded in the output. Email metadata including From, To, CC, BCC, Subject, Date, Message-ID and all RFC 5322 headers are preserved exactly as stored. No attachment is lost and no header is stripped during conversion.

Date and folder filters

Date Range and Folder Filters

Convert only emails within a specific date range, from specific folders or matching a subject keyword. Filters let you extract only the legally required emails for a compliance request or only the last six months of a departing employee's inbox rather than their entire seven-year email history.

100% offline

100% Offline and Confidential

Business email archives contain highly sensitive communications. Univik Converter processes every Xeams message file locally on your Windows machine. No emails are transmitted to any server, no cloud processing occurs and no internet connection is required. The conversion log records every file processed for internal audit purposes.

 Export Formats

Export Xeams Emails to 20+ Formats

Every format available for converting your QNAP Xeams email archive. Import into a new mail system, archive for compliance or open in any email client.

Email Client Formats

📦
PST
Outlook Data
✉️
EML
Email Message
📨
MSG
Outlook Message
📫
MBOX
Unix Mailbox
📧
EMLX
Apple Mail
📮
MBX
Mailbox File

Document and Archive Formats

📄
PDF
Portable Document
📝
DOC / DOCX
Word Document
📋
RTF
Rich Text Format
📃
TXT
Plain Text
📊
CSV
Spreadsheet
📑
XPS
XML Paper Spec

Web and Structured Formats

🌐
HTML
Web Page
📑
MHTML
Web Archive
🗂️
JSON
Structured Data
📰
TNEF
Transport Neutral
🔖
ICS
Calendar Events
👤
VCF
Contacts vCard

All 20+ formats available in the full version. View the complete format list on the Univik Email Converter page.

 Data Integrity

Everything Preserved During Conversion

Every element of your Xeams email data is carried through the conversion process without modification.

Read/Unread Status
📎
All Attachments
Flagged / Starred
📁
Folder Structure
👥
From / To / CC / BCC
🖼️
Inline Images
💬
Subject Line
✍️
Email Signatures
📅
Date & Time
🔗
Hyperlinks
📋
Email Headers
🎨
HTML Formatting
🔒
MIME Metadata
🔴
Email Priority
🏷️
Folder Names
🏷️
Message Threading

 Simple Pricing

Choose Your License

One-time payment. Lifetime license. No subscription. Free updates included.

Free Trial

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$0 forever
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  • 10 emails per folder
  • All export formats
  • Full preview
  • No time limit
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Personal

Personal License

$99 lifetime
One-time payment
Buy Personal

30-day money-back guarantee

  • Unlimited conversion
  • All 20+ export formats
  • 1 PC activation
  • Free lifetime updates
  • Email support
Business

Business License

$299 lifetime
Buy Business
  • Everything in Personal
  • 5 PC activations
  • Commercial use
  • Priority phone support
  • Volume discounts

 How It Works

Xeams to PST in 3 Steps

Copy the data off the NAS, convert on Windows, import into your destination system.

1

Copy Xeams Message Folders

On the QNAP, locate the Xeams data directory containing the Good email repository and the UserRepository mailboxes. Copy these folders to a Windows PC via File Station, an SMB share or the Container Station volume. Keep the folder structure intact for accurate mailbox identification.

Xeams stores each message as an individual RFC822 file inside date-named folders.

2

Load and Configure

Open Univik Xeams Converter. Browse to a single mailbox folder or the full Xeams repository for batch processing. Preview shows message counts, folder structure and date ranges for each mailbox. Apply any date or folder filters needed before conversion.

3

Convert and Import

Select output format and destination folder. Click Convert. Each mailbox generates its own output file. Import PST files directly into Outlook or Microsoft 365. Move EML files into Thunderbird or any IMAP server. Send PDF archives to your compliance storage.

 Use Cases

Who Converts QNAP Xeams Mailboxes

The organisations and IT teams that rely on Univik Xeams Converter.

NAS decommission

NAS Decommission and Replacement

When a QNAP NAS reaches end of life or is replaced, IT teams need to preserve all Xeams mailboxes before powering down the hardware. Univik Converter processes the copied Xeams archive into PST or EML so all historical email remains accessible after the NAS is gone.

Cloud migration

Migration to Cloud Email

Organisations moving from QNAP Xeams to Microsoft 365, Google Workspace or another cloud mail platform need their historical emails in PST or EML format for upload. Univik Converter produces import-ready output for all major cloud migration tools without any intermediate reformatting step.

Compliance archiving

Compliance and Legal Archiving

Regulated industries must retain business email for three to seven years. Xeams already archives every inbound and outbound message, so converting that Good repository to PDF or EML creates a compliant, readable archive independent of the NAS. Each PDF email record includes all headers and metadata required for audit trail and legal disclosure purposes.

Employee off-boarding

Employee Off-Boarding

When employees leave, IT managers need to archive their Xeams mailbox before the account is removed. Univik Converter exports the departing employee's full mailbox including sent items, drafts and any custom folders to PST or EML for handover to their manager or storage in the compliance archive.

Disaster recovery

Disaster Recovery and Backup Validation

Organisations running Xeams use Univik Converter to validate repository backups by converting them and verifying email integrity. Converting to EML or PST and spot-checking emails confirms that the backup is readable and complete before a real disaster makes this question urgent.

 Xeams Server Reference

About QNAP Xeams Email Server

What Xeams is, how it stores email and what the conversion process involves technically.

What is QNAP Xeams?

Xeams is a secure email server from Synametrics Technologies that runs on Windows, Linux, macOS and on QNAP NAS through Container Station. It provides SMTP, POP3 and IMAP services and can run as a full standalone server, as a spam firewall in front of Exchange or in hybrid mode. Many QNAP owners run Xeams as the mail server for their business.

Xeams stores every message as an individual RFC822 (MIME) file inside its email repositories. Since RFC822 is an open standard, the data can be read by any MIME-compatible tool once the folders are copied off the NAS. Xeams to PST conversion is the most common operation after a QNAP email export.

Quick Reference

DeveloperSynametrics Technologies (USA)
PlatformQNAP (Container Station), Windows, Linux, macOS
Email storageRFC822 message files (date-organised)
ProtocolsSMTP, POP3, IMAP
Built-in exportNone (IMAP / webmail access only)
Current versionXeams 9.x
LicenseCommunity Edition free; Enterprise paid per user
Official docsXeams Knowledge Base

Why There Is No Easy Built-in Export

  • No batch export
    Xeams has no built-in tool to export mailboxes to PST, PDF or EML in bulk.
  • IMAP pull is slow
    Re-downloading every mailbox over IMAP into a client is slow and error prone for large archives.
  • Raw files are hard to read
    The stored RFC822 files sit in date-named folders that are not practical to open one by one.
  • Univik Converter
    Batch convert every mailbox to 20+ formats. NAS not required.

QNAP Xeams Version History

From Spam Filter to Full Mail Server

Xeams began as a Java spam-filtering server that sits in front of Exchange and other mail servers, then grew into a full email server with built-in SMTP, IMAP and POP3, end-to-end encryption, clustering and a web client. It runs on QNAP through Container Station, giving NAS owners a self-hosted mail server.

Spam Firewall mode Hybrid mode Stand-Alone server IMAP / POP3 End-to-end encryption RFC822 storage

Version Timeline

Early
Java spam-filtering server in front of Exchange and other MTAs
Firewall
Spam Firewall mode with Bayesian and rule-based scoring
Server
Full Stand-Alone mode with built-in SMTP, IMAP and POP3
Hybrid
Hybrid mode plus end-to-end encryption and clustering
Now
Xeams 9.x runs on QNAP through Container Station
Univik QNAP Xeams Converter Features

 Why Univik

Email Conversion Built for IT Teams

Univik has been building email archive converters since 2013. The Xeams converter is part of a comprehensive email archive toolkit that covers Mail Assure, Mimecast, Google Vault and 20+ other email archive formats.

  • Reads the RFC822 message files stored by all Xeams versions.
  • Batch convert every mailbox and the global archive in one operation.
  • Full folder hierarchy preserved in every output format.
  • All attachments and RFC 5322 headers included in output.
  • Date range, folder and keyword filters for targeted extraction.
  • Conversion log with per-email status for audit documentation.
  • 100% offline. No emails transmitted. No cloud dependency.
  • Free trial. No registration. 30-day money-back guarantee.

 Customer Reviews

Trusted by IT Teams Worldwide

Rated 4.8 out of 5 by verified users including system administrators and IT managers who converted QNAP Xeams mailboxes.

★★★★★ 4.8 / 5  (118 reviews)
★★★★★

"We decommissioned our QNAP TS-453D running Xeams and needed to export 12 mailboxes. Converted all of them to PST in under an hour. The folder structure was exactly preserved in Outlook."

Mark H.
IT Manager  ·  Leeds, UK
★★★★★

"Needed to archive 5 years of Xeams email to PDF for a compliance audit. Batch converted 3 mailboxes with date filters. Each PDF has the full headers. Exactly what our auditor needed."

Priya N.
Compliance Officer  ·  Singapore
★★★★★

"Migrating our office from Xeams to Microsoft 365. Converted 28 mailboxes to PST over a weekend. Imported directly into Exchange Online without any reformatting. Saved us two days."

Tobias W.
Systems Administrator  ·  Hamburg, Germany

 FAQs

Common Xeams Converter Questions

Answers to what IT administrators ask most about converting QNAP Xeams email mailboxes.

No. Once you have copied the Xeams message folders (the Good repository and the user mailboxes) off the QNAP, Univik Converter reads those files locally on your Windows PC without any connection to the NAS. This is particularly useful when the NAS is being decommissioned, when you are restoring from a backup on a different machine or when you need to process historical archives from a NAS that is no longer accessible.

Xeams stores every message as an individual RFC822 (MIME) file inside its email repositories. The Good repository holds archived inbound and outbound mail in date-named folders and the UserRepository holds per-user IMAP and POP3 mailboxes. Because RFC822 is an open standard, the data can be read by any MIME-compatible tool after the folders are copied off the NAS.

Yes. Copy the Xeams repository folder containing all mailboxes, then point Univik Converter at that folder. The converter identifies each mailbox, processes them sequentially and generates a separate output file per mailbox named after the source. There is no mailbox limit in the paid version, making this practical for organisations with dozens or hundreds of users.

Yes to both. All file attachments are extracted and embedded in the output exactly as in the original message. In PST output, attachments appear within each Outlook message. In EML output, attachments are saved as separate files alongside the .eml file. The Xeams folder hierarchy including the repository folders and per-user Inbox, Sent, Drafts and custom folders is fully preserved and recreated in the output.

All Xeams versions are supported. The converter reads the standard RFC822 message files that Xeams has stored consistently across releases, so any version running on QNAP, Windows, Linux or macOS in Stand-Alone, Hybrid or Spam Firewall mode is compatible.

Yes. PDF output is the most suitable format for compliance archiving and legal discovery. Each email exports as a self-contained PDF with all headers (From, To, CC, BCC, Subject, Date, Message-ID) and the full message body visible. The converter generates a log file recording each source file, its email count and the output path, which can be retained as part of your audit trail.

Completely. Univik Xeams Converter processes all message files locally on your Windows machine. No email content is transmitted to any server or cloud service. No internet connection is required during conversion. Your organisation's business communications, which may contain confidential client or financial information, never leave your local machine throughout the entire process.

PST is the most direct format for importing into Microsoft 365 or Exchange. The PST output from Univik Converter is fully compatible with the Outlook Import and Export Wizard and with the Exchange Admin Center's PST import service. Each converted PST file contains all folders and emails from the source mailbox and imports in a single operation without any intermediate reformatting.

Univik Xeams Converter runs on Windows 7, 8, 8.1, 10 and 11 (both 32-bit and 64-bit). Minimum 4 GB RAM is recommended for large repositories. You need approximately 100 MB of disk space for the installation plus output file space. No internet connection is required during conversion. The free trial converts the first 25 emails per folder so you can verify output quality before purchasing.

Convert Your QNAP Xeams Email Archive

Free trial. No NAS required. No registration. Your emails stay on your machine.

Windows 7, 8, 10, 11  |  100% offline  |  30-day money-back guarantee

Written by Univik Research Team

The Univik Research Team has been building email archive conversion software since 2013. Our engineers work with MBOX, PST, EML, MSG and all major email archive formats. This page covers QNAP Xeams email server export and conversion, tested against real Xeams message repositories copied from QNAP Container Station deployments. For professional email migration assistance, see our email migration service.

Related converters: Mail Assure  |  Mimecast  |  Google Vault  |  MailStore Server