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MX Backup & Mail Bagging

Mail Bagging Explained: How MX Backup Queues and Redelivers Email During Outages

Mail bagging — also called MX backup or email spooling — captures inbound email at a secondary server when the primary is unreachable and redelivers it automatically on recovery. Learn exactly how it works, how it differs from full email continuity, and when your clients need it.

IDC
IDC Engineering Team
March 31, 2026  ·  7 min read
Read the full article
FEATURED  /  MX BACKUP & MAIL BAGGING
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Latest Articles
MX Backup
MX Backup Mail Bagging Explained: How MX Backup Queues and Redelivers Email During Outages

Mail bagging captures inbound email at a secondary server when the primary is unreachable and redelivers it on recovery. Learn how MX record priority, queue retention, and relay work in practice.

7 min
Email Continuity
Email Continuity M365 Tenant Migration Email Continuity: Protect Inbound Mail During DNS Cutover

DNS propagation during M365 tenant-to-tenant migration leaves a window where inbound mail can be lost or bounced. StrataMail acts as a neutral catch-all MX throughout the cutover window.

7 min
Email Hosting
Email Hosting StrataMail: Secure, VPS-Based Business Email Hosting

StrataMail is IDC's flagship email platform — built on VPS infrastructure for performance, security, and flexibility. Available in Shared, VPS, and Dedicated tiers.

6 min
Email Security
Email Security SpamWeeder Premium: 99.98% Accurate Spam Filtering for Business

SpamWeeder Premium delivers 99.98% accuracy, up to 4 days of email spooling, outbound filtering, and white-label branding — with native StrataMail continuity integration.

5 min
Email Security
Email Security VIPRE Email Security: Advanced Threat Protection for Business Inboxes

VIPRE delivers layered protection against spam, phishing, malware, and zero-day threats — including click-time URL scanning that blocks phishing pages activated after delivery.

5 min
Email Security
Email Security Proofpoint Essentials: Enterprise Email Security for SMBs

Proofpoint Essentials brings Fortune 500-grade threat intelligence to small and mid-size businesses — blocking advanced phishing, BEC, malware, and ransomware delivered via email.

6 min
MX Backup
MX Backup StrataMX Backup: Never Lose Inbound Email When Your Server Goes Down

StrataMX Backup queues all inbound email during primary server outages and delivers everything automatically on recovery — no lost messages, no bounces.

6 min
Email Continuity
Email Continuity StrataMail Continuity: Keep Your Team Sending & Receiving Through Any Outage

StrataMail Continuity activates automatically when your primary server goes down — users keep working through a live browser portal with no IT intervention required.

6 min
Email Continuity
Email Continuity Email Continuity Solutions for Any Mail Platform — Including Microsoft 365

Email continuity keeps users actively sending and receiving during outages — going beyond MX backup to maintain full two-way communication across StrataMail, M365, and more.

6 min
Hybrid Solutions
Hybrid Solutions Hybrid Split-Domain Email: StrataMail Alongside M365 or Google Workspace

Route different users on the same domain through different email platforms simultaneously — StrataMail for standard users, M365 or Google for collaboration-heavy users.

7 min
Hybrid Solutions
Hybrid Solutions Microsoft 365 + StrataMail: How the Split-Domain Hybrid Configuration Works

Keep M365 users on Microsoft's platform while others run on StrataMail — under the same @yourcompany.com domain with unified mail flow and centralized spam filtering.

7 min
AI & Automation
AI & Automation AI-Powered Email Parsing: Automate Data Extraction from Inbound Email

Local LLMs and n8n orchestration read, classify, and extract structured data from business email automatically — with no data sent to third-party cloud AI providers.

8 min
AI & Automation
AI & Automation Private AI & Local LLM Automation: Run AI Without Sending Data to the Cloud

IDC deploys local LLMs on dedicated hardware in Knoxville — giving businesses full AI automation capability with sensitive data staying entirely on-premise.

8 min
Data Center
Data Center Server Colocation in Knoxville, TN: Rack & Single-Server Options at IDC

Redundant power, WOW and Comcast fiber with BGP failover, multi-layer physical security, and hands-on engineering support at IDC in Knoxville, Tennessee.

7 min
Data Center
Data Center Multihome Internet: Automatic BGP Failover at Infinity Data Center

Two ISP connections — WOW and Comcast — with enterprise BGP routing means if one provider fails, traffic shifts automatically in seconds with no manual intervention.

6 min
Hosting & Servers
Hosting & Servers Managed VPS Hosting with Proxmox: High-Performance VMs Fully Managed by IDC

KVM-isolated virtual servers on Proxmox VE with clustering, high-availability configurations, and full management by IDC's Knoxville engineering team.

6 min
Backup & DR
Backup & DR Proxmox Backup Servers: Deduplication, Replication & Encrypted VM Storage

Enterprise VM backup with built-in deduplication, scheduled replication, and client-side encryption — available in shared and dedicated configurations from IDC.

6 min
Data Center
Data Center Point-to-Point Fiber: Private Office-to-Datacenter Connections

Replace the VPN-over-internet path with a private, dedicated fiber circuit — zero shared bandwidth, consistent low latency, and no public internet exposure.

6 min
Resellers
Resellers White-Label Email Reseller Program: Offer StrataMail & Continuity Under Your Brand

MSPs and IT providers offer StrataMail, SpamWeeder, StrataMX Backup, and email continuity fully white-labeled under their own brand — with Webservio staying in the background.

6 min
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Featured Topics
Mail Bagging
How MX backup queuing works
M365 Tenant Migration
Protect mail during DNS cutover
StrataMX Backup
Secondary MX service
Email Continuity
Stay live during any outage
StrataMail Hosting
VPS-based business email
Reseller Program
White-label under your brand
Tech Dispatch Newsletter

Monthly guides on email, AI, and infrastructure from the IDC engineering team.

Browse Topics
StrataMail SpamWeeder VIPRE Proofpoint MX Backup Mail Bagging Continuity M365 Migration Hybrid Email AI Parsing Local LLM Colocation Managed VPS Proxmox Backup
Infinity Data Center
A Webservio Company  ·  Knoxville, TN  ·  Est. 1998

Since becoming part of Webservio in 2013, Infinity Data Center has delivered enterprise-grade email hosting, colocation, managed VPS, and AI automation services to businesses across the country.

Email Services

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  • SpamWeeder Premium
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