Endurance/Newfold Microsoft 365 Migration Guide for Bluehost, HostGator & Constant Contact Customers

• 08 May 2026
• Cloud Solution Provider
• Editorial Team

If you’re a Bluehost, HostGator, Constant Contact, Domain.com, Network Solutions, or Web.com customer who just received an email saying your Microsoft 365 subscription has to move to a new partner, you’re not alone. The Endurance International Group / Newfold Digital wind-down is pushing thousands of small businesses and their MSPs to find a new Cloud Solution Provider (CSP) before their renewal cutoff. The reassuring part: in most cases no data has to migrate, no downtime is involved, and the partner transfer completes inside a week. This guide walks through exactly what’s changing, which brands are affected, the three options in front of you, and the step-by-step CSP transfer process, written for both end customers and MSPs taking over these tenants.

• Endurance International Group (now Newfold Digital) is winding down or restructuring how it sells Microsoft 365 through its hosting brands — Bluehost, HostGator, Constant Contact, Domain.com, Network Solutions, Web.com, iPage, FatCow, HostMonster, and others.
• If you bought Microsoft 365, Office 365, or Exchange Online through any of those brands, you will need to move your subscription to a new Cloud Solution Provider (CSP) partner — or directly to Microsoft — before your renewal cutoff.
• A properly executed CSP transfer keeps your tenant, mailboxes, SharePoint sites, Teams data, OneDrive files, and email addresses exactly where they are. Nothing has to “migrate” in the painful sense. We do this every week.

What Is Actually Happening with Endurance / Newfold and Microsoft 365?

Endurance International Group Holdings, Inc. — the parent company that owned Bluehost, HostGator, Constant Contact, Domain.com, Network Solutions, Web.com, iPage, FatCow, HostMonster, and a long list of other hosting and small-business brands — was taken private and rebranded as Newfold Digital in early 2021. Since then, Newfold has been steadily rationalizing the products it resells, and Microsoft 365 / Office 365 is one of the offerings being restructured.

If you are reading this, you have probably received an email or a portal notice telling you that your Microsoft 365 subscription will not auto-renew with your current host, that you need to choose a new partner, or that your billing relationship is changing. The notice usually points to a deadline. That deadline is real.

Microsoft itself does not run the wind-down — your hosting provider does — so the support pages on Microsoft’s own learn.microsoft.com forums show this same question being asked repeatedly: “My Microsoft 365 was bought through Endurance / Bluehost / HostGator / Constant Contact — what do I do?”

The short answer: you don’t need to lose anything. You need to transfer the billing and partner relationship for your tenant to a new CSP partner. The data does not move. The mailboxes do not migrate. The domain does not change. Only the partner-of-record changes — assuming your current reseller hosted you on your own Microsoft tenant. (More on that important distinction in a moment.)

Which Brands Are Affected?

If you bought Microsoft 365, Office 365 Business, Exchange Online, or hosted Exchange through any of these, this guide is for you:

• Bluehost Microsoft 365 / Office 365
• HostGator Microsoft 365 / Office 365
• Constant Contact Microsoft 365 (legacy bundle)
• Domain.com Microsoft 365 / professional email
• Network Solutions Microsoft 365 / hosted Exchange
• Web.com Microsoft 365 / Office 365
• iPage Microsoft 365 / professional email
• FatCow professional email and Office 365 add-ons
• HostMonster Office 365 add-ons
• Register.com professional email
• Any Endurance / Newfold sub-brand selling Microsoft 365 as an add-on

If your invoice, login portal, or support email comes from any of those brands and references Microsoft 365, Office 365, Exchange Online, or “professional email powered by Microsoft,” you are in scope.

How Apps4Rent compares to Microsoft’s own support offerings

Support Feature	Microsoft Standard	Microsoft Unified	Apps4Rent
Success Management	❌	Dedicated Manager	Priority Support Desk
Advisory Services	❌	Limited Hours	Always Available
Health Assessments	❌	On-demand	Included
Technical Training	Online Videos Only	Webinars & Labs	Admin Training Included
Escalation Management	❌	Assigned Team	Direct Tier 3 Escalation
Post Migration Assistance	❌	Paid Service	Free
Third-Party Support	❌	Limited	Extensive Interoperability
Additional Cost	Included in License	Up to 10% of License Value	$0 Additional Cost

What Happens If You Do Nothing?

This is the question every business owner asks first, and the answer is unfortunately not “nothing.” Depending on the brand and the wind-down stage, ignoring the notice typically results in some combination of the following:

• Auto-renewal stops. Your subscription expires on its current term-end date.
• License grace period kicks in. Microsoft gives a short grace window (usually 30 days post-expiry for most CSP SKUs), during which mailboxes still work but admin changes are blocked.
• Mailbox access is suspended. After the grace period, users can’t sign in. Data is retained in a read-only state for an additional retention window (typically 30–90 days depending on the SKU), then permanently deleted.
• Admin portal access is lost. You may lose the ability to add users, reset passwords, or even export your own data without partner assistance.

The fix is straightforward — but the deadline is not flexible. Once Microsoft purges a tenant, the data is gone. Move before the cutoff and none of this is a concern.

Your Three Options

There are three legitimate paths forward. None of them is wrong — the right choice depends on your size, your in-house IT, and how much you want to pay.

Option	Best for	What changes	What stays the same
Move to a new CSP partner (recommended for most SMBs)	1–500 seats, want bundled support, want a single throat to choke	Billing partner; sometimes the price (often lower)	Tenant, data, email addresses, domain, Outlook profiles, Teams, SharePoint
Move to Microsoft direct	Mid-market with in-house IT, prefer to manage everything yourselves	Billing partner; you become your own admin of record	Tenant, data, email addresses, domain
Move to volume licensing / EA	250+ seats with procurement teams	Licensing model, billing cadence, possibly tenant if consolidating	Mailboxes and data (if migration handled correctly)

For the vast majority of Bluehost, HostGator, Constant Contact, and Network Solutions Microsoft 365 customers — typically 5 to 100 seats with no dedicated IT — moving to a new CSP partner is the lowest-risk, lowest-effort path.

How a CSP Transfer Actually Works (For MSPs and Technical Readers)

This is where the technical detail lives. If you’re an MSP taking over a client’s tenant from a Newfold brand, or you’re an IT admin who wants to know exactly what changes under the hood, this section is for you.

The mechanism is a partner-of-record change, executed via GDAP (Granular Delegated Admin Privileges). Microsoft retired the older DAP model, so any modern CSP transfer is GDAP-based. The flow looks like this:

• Verify tenant ownership.

  Customer (or current partner) confirms the tenant ID and the current partner-of-record. If your reseller hosted you on their tenant rather than your own (this happens with some legacy “professional email” SKUs from Network Solutions and Web.com, and with bundled Constant Contact email), you have a true migration ahead of you, not a transfer. The new CSP creates a fresh tenant for you and migrates mailboxes/SharePoint/OneDrive over.

• Issue GDAP relationship request.

  New CSP sends a GDAP invite specifying the Azure AD roles needed (typically Global Reader, License Admin, User Admin, Helpdesk Admin — Global Admin only when justified). Customer’s Global Admin accepts the invite.

• Transfer subscriptions.

  New CSP requests transfer of the existing Microsoft 365 subscriptions via the Partner Center “Subscription Transfer” workflow. Microsoft validates and executes — typically within 24–72 hours. Existing licenses continue to work throughout. No mailbox or data movement occurs.

• Remove prior partner relationships.

  Once transfer completes, the old Newfold-brand reseller’s GDAP/DAP is removed. Billing now flows through the new CSP.

• Reconcile licensing.

  New CSP may right-size SKUs (e.g., consolidate Exchange Online Plan 1 + standalone OneDrive into Microsoft 365 Business Standard for cost savings). This is optional and customer-approved.

Edge cases to watch:

• Shared-tenant resellers. As noted, if your data lives on the reseller’s own tenant (very common with Network Solutions Professional Email and some bundled Constant Contact email products), you need a tenant-to-tenant migration, not a CSP transfer. We can tell which one you have in 5 minutes by checking your initial domain (the .onmicrosoft.com address tied to your account).
• Add-on SKUs that no longer exist. Some legacy bundles sold by HostGator or Bluehost contain SKUs Microsoft has since retired. New CSP needs to map those to current equivalents at transfer time.
• MFA / Conditional Access locked admins. If the Global Admin account is shared with the reseller and you don’t have your own credentials, you’ll need to recover the account before the GDAP invite can be accepted. Plan for this — it’s the single most common cause of delay.
• Domain ownership. If the domain itself is registered through Domain.com, Network Solutions, or Register.com, the domain registration is a separate item from the Microsoft 365 tenant. They are not transferred together. Most customers leave the domain where it is; some take this opportunity to consolidate.

A clean CSP transfer is a paperwork exercise, not a data migration. A tenant-to-tenant migration is the harder case — and it is also one of the most common projects we run.

Will I Lose My Email, SharePoint, or Teams Data?

Short answer: No, if you’re on your own tenant. Yes, you must migrate, if you’re on the reseller’s tenant.

The single fastest way to tell which scenario you’re in is to log in to the Microsoft 365 admin portal at admin.microsoft.com with your Global Admin account and look at the Initial domain:

• If it’s something like yourcompany.onmicrosoft.com → you have your own tenant. A CSP transfer keeps everything in place.
• If it’s something like bluehostm365.onmicrosoft.com or nethoster.onmicrosoft.com → you are on a shared/reseller tenant and you need a true migration to a new tenant.

If you can’t log in to the admin portal at all, that itself is a clue — it usually means you are on a hosted/shared product, not your own tenant. Either way, we can confirm it for you in a single screen-share session.

Step-by-Step Migration Timeline

Here’s what a typical engagement looks like end-to-end. Most customers are fully transferred within a week.

• Day 0 — Discovery (30 minutes)
  We confirm your current reseller, license inventory, tenant type (own vs. shared), domain registrar, and any existing third-party integrations (Salesforce, QuickBooks, line-of-business apps).
• Day 1 — Quote and approval
  You receive a fixed-price quote with the SKU mapping, the new monthly/annual cost, the transfer plan, and the rollback plan. You approve in writing.
• Day 2 — GDAP invitation
  We issue the GDAP request. You accept it from your Global Admin account. Total time: 5 minutes.
• Day 3 — Subscription transfer initiated
  We file the transfer request through Microsoft Partner Center. Existing licenses continue to work. End-users notice nothing.
• Day 4–5 — Microsoft completes the transfer
  Billing now routes through us. We issue your first invoice from the new term start date.
• Day 5–7 — Cleanup and optimization
  Old partner relationship removed. SKUs reviewed for cost optimization. Documentation handed over. Optional: we set up monitoring, MFA hardening, conditional access policies, and a backup tenant if you don’t already have one.

For shared-tenant migrations (the harder case), add 2–3 weeks for mailbox, SharePoint, OneDrive, and Teams migration with a planned cutover weekend.

Why Apps4Rent Is the Right CSP Partner

We are a Microsoft Solutions Partner with three Solution Designations (Modern Work, Infrastructure, Business Applications), GDAP-ready since the day Microsoft launched it, and we have transferred and migrated tens of thousands of Microsoft 365 tenants over the past 15 years. We are not a hosting company moonlighting as a CSP — Microsoft 365 is the core of what we do.

What customers leaving Bluehost, HostGator, Constant Contact, and Network Solutions tell us they get from the move:

• 24/7/365 live human support — phone, chat, email — not a ticket queue
• Same-week transfers with a written rollback plan
• Honest SKU mapping — we routinely cut customers’ bills 10–30% just by right-sizing licenses the previous reseller never optimized
• One throat to choke — same team handles Exchange, SharePoint, Teams, Intune, Defender, Azure, and every other workload you’ll add later
• MSP partner program if you are a managed service provider taking over a portfolio of Newfold customers — co-branded billing, white-glove onboarding, dedicated channel manager

Frequently Asked Questions

1. Do I need to change my email address?

   No. Your email addresses, domain, mailboxes, calendars, contacts, and Outlook profiles all stay exactly as they are during a CSP transfer. Users notice no change.

2. Will Outlook keep working during the transfer?

   Yes. The transfer is invisible to end-users. No re-configuration of Outlook, mobile devices, or Teams clients is required.

3. What happens to my SharePoint sites and OneDrive files?

   They stay in place. A CSP transfer does not move data — it changes the billing and admin partner only.

4. What about my Constant Contact email lists or marketing automation?

   Constant Contact’s email marketing product is separate from any Microsoft 365 mailbox subscription you may have purchased through Constant Contact. The marketing platform is unaffected by your Microsoft 365 partner change. (If you specifically want to leave Constant Contact’s marketing platform, that’s a separate conversation we can also help with.)

5. How long does a CSP transfer take?

   Most transfers complete in 3–5 business days end-to-end. Tenant-to-tenant migrations (only required if you are on a shared/reseller tenant) take 2–4 weeks depending on data volume.

6. Will I lose any data if I miss the deadline?

   If your subscription expires before the transfer completes, you enter a 30-day grace period followed by a retention window. As long as we initiate the transfer before final purge, no data is lost. The earlier you start, the easier it is — but we have rescued tenants from inside the grace window many times.

7. Do I need to be technical to do this?

   No. If you can log in to your Microsoft 365 admin portal once and click “Accept” on a GDAP invite, you have done the only thing required of you. We handle the rest.

8. Is there any downtime?

   None for a standard CSP transfer. For a shared-tenant migration, we plan a weekend cutover window — typically 4–6 hours of mail-flow pause that we time around your business hours.

9. What does it cost?

   The transfer itself is free of charge from us. Your monthly Microsoft 365 license cost typically goes down 10–30% after right-sizing. We provide a fixed-price quote before you commit to anything.