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How to Use MailBee.NET Outlook Converter for Seamless Email Migration

Overview

MailBee.NET Outlook Converter is a .NET library/toolset for converting Outlook data files (PST/OST) and Outlook items (MSG) into other formats (EML, MBOX, HTML, PDF, etc.) and for migrating messages between mail stores programmatically.

Prerequisites

• Environment: Windows with .NET Framework or .NET Core/5+ compatible runtime.
• License: Valid MailBee.NET license (trial available).
• Files: Source PST/OST/MSG files accessible on disk or via Outlook profile.
• Development tools: Visual Studio (recommended) and knowledge of C# or VB.NET.

Typical Migration Workflow (step-by-step)

1. Install the library
   • Add MailBee.NET Outlook Converter to your project via the provided installer or NuGet package (if available).
2. Load the source PST/OST
   • Use the library’s PST/OST reader API to open the source file or connect to an Outlook profile.
3. Enumerate folders and messages
   • Iterate folders recursively to collect messages, subfolders, contacts, calendars as needed.
4. Select output format
   • Choose target format(s): EML, MSG, MBOX, HTML, PDF, or direct upload to another mail store (IMAP).
5. Convert messages
   • For each message, call the conversion method to produce the selected format. Preserve metadata (timestamps, sender/recipient, attachments).
6. Handle attachments and embedded items
   • Extract and save attachments or embed them in converted output depending on target format.
7. Preserve folder structure
   • Recreate folder hierarchy in the destination (filesystem folders, MBOX directories, or IMAP folders).
8. Optional: Upload to IMAP or import to another account
   • Connect to destination server via IMAP and append converted messages preserving flags and dates.
9. Error handling and logging
   • Implement retry logic, log failures, and produce a summary report of converted, skipped, and failed items.
10. Validation

• Spot-check converted messages in the destination client to ensure formatting, attachments, and metadata were preserved.

Code example (C# — simplified)

csharp
Copy CodeCopied
// Pseudocode — adapt to actual MailBee.NET API names
using MailBee.Outlook;

var converter = new OutlookConverter(“path\to\source.pst”);
converter.Open();

foreach(var folder in converter.Folders)
{
Directory.CreateDirectory(Path.Combine(destDir, folder.Path));
    foreach(var msg in folder.Messages)
    {
        string outPath = Path.Combine(destDir, folder.Path, msg.Subject + ”.eml”);
        msg.SaveAs(outPath, SaveFormat.EML);
    }
}

converter.Close();

Tips for a smooth migration

• Test first: Run on a small subset to verify settings and output quality.
• Maintain timestamps and flags: Use API options to preserve original sent/received dates and read/unread status.
• Character encoding: Ensure Unicode support to avoid corruption of non‑ASCII text.
• Large mailboxes: Process in batches and monitor memory usage; prefer streaming APIs if available.
• Attachments: For target formats that don’t embed attachments, save them into a separate attachments folder and keep links.
• Permissions and locks: Close Outlook or ensure PST is not locked; run with sufficient file permissions.
• Logging: Capture per-message status and error details for later reconciliation.

Common Pitfalls

• Corrupt PST files — run repair tools first.
• Missing embedded items (calendars/contacts) if only messages are exported.
• Timezone/date shifts when not preserving UTC offsets.
• Incomplete folder hierarchy if folder names conflict on destination filesystem.

Validation Checklist

• Randomly open converted messages in the target client.
• Verify attachments open correctly.
• Confirm folder counts and message counts match source.
• Check calendar items and contacts were migrated if required.

If you want, I can generate a ready-to-run C# sample tailored to your MailBee.NET version and migration target (EML, MBOX, IMAP).

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