Unlimited Business
Email Hosting. 100% Free.
Multiple domain Email Hosting: Create 5 professional email accounts on your 1 own domain for $0/month. No hidden fees, no trial periods, and with 15 GB Storage. Powerful business email hosting is completely included in the free plan
Ready in Under 2 Minutes
Sign Up Free
Create your account instantly. No credit card required.
Add Multiple Domains
Connect unlimited domains, verify DNS records easily for true multiple domain email hosting.
Create Email
Set up unlimited business email accounts across all your domains.
Start Sending
Access via webmail, mobile apps, or any email client.
The All-In-One Business Email Hosting Platform
Powering multiple domain email hosting with zero cost
Multiple Domain Support
Host unlimited domains under one account — perfect for agencies.
Modern Webmail
Clean, fast, ad-free interface with powerful organization tools.
Powerful SMTP Relay
Send transactional emails via your domain (WordPress, Laravel, etc.).
App Integration
Easy setup for websites, stores, and apps.
Calendar
Encrypted calendar for scheduling and planning.
Drive & Docs
Secure cloud storage via WebDAV protocol.
Two-Factor Auth
Extra protection using authenticator apps.
Full Email Suite
Catch-all, aliases, auto-responders, restore emails.
Open Protocols & Standards
All protocols included for free — no extra fees
Your Brand, Your Email Platform
Fully white-label webmail interface. Customize with your company branding, no vendor lock-in. Multiple domain email hosting means all your brands under one roof.
You Have Complete Control
Unlimited domains · Unlimited mailboxes
✨ hello@yourbrand.com
✨ support@seconddomain.com
✨ info@thirdcompany.org
Why Choose Attachmall for Multiple Domain Email Hosting?
| Features | Attachmall | Google Workspace | Microsoft 365 |
|---|---|---|---|
| Price | Free (or low-cost plans) | From $6/user/month | From $6/user/month |
| Multiple Domain Email Hosting | ✅ Unlimited domains, unlimited mailboxes | ❌ Per user per domain extra cost | ❌ Limited / additional fees |
| Email Accounts | Unlimited | 1 per user | 1 per user |
| Protocol Support | Full (JMAP, IMAP, POP3, CalDAV, CardDAV) | Limited IMAP | Limited |
| Productivity Tools | Calendar, Drive, Webmail included | Yes (paid) | Yes (paid) |
Trusted by 10,000+ teams
Jessica M.
Small Business Owner
“Multiple domain email hosting on Attachmall simplified everything. I run 5 brands from a single dashboard. Unbeatable.”
Marcus Chen
Startup Founder
“Unlimited email accounts and multiple domains for free is a game-changer. Saved thousands on hosting.”
Sarah Rodriguez
Freelancer
“Powerful tools like calendar and storage included. Managing multiple client domains has never been easier.”
Simple, Transparent Pricing
Every plan includes unlimited email accounts and domains. No per-user fees, ever.
FREE FOREVER
Signup for the Free Plan to access.
- 5 Professional Email Accounts
- 1 Domain
- Webmail & Apps
- CalDAV, CardDAV, WebDAV
- Mail, Drive, Docs, Calendar
- JMAP/SMTP/IMAP/POP3
- Transactional emails allowed
- Forwarders & Catch-All
- Instant Setup & Activation
Unlimited Standard
Perfect for small businesses getting started.
- Unlimited professional email accounts
- Unlimited Domains
- Webmail & Apps
- CalDAV, CardDAV, WebDAV
- Mail, Drive, Docs, Calendar
- JMAP/SMTP/IMAP/POP3
- Transactional emails allowed
- No Ads, No "Sent by Attachmall"
- Forwarders & Catch-All
- Free Migration
- Instant Setup & Activation
Unlimited Extended
Most popular plan for growing businesses.
- Unlimited professional email accounts
- Unlimited Domains
- Webmail & Apps + all protocols
- Mail, Drive, Docs, Calendar
- No Ads, No "Sent by Attachmall"
- Free Migration + Priority support
- Transactional emails allowed
- Forwarders, Catch-All
- Instant Setup & Activation
Unlimited Premium
For businesses needing more storage.
- Unlimited accounts & domains
- Full suite: Mail, Drive, Docs, Calendar
- No Ads, white-label optional
- Free Migration + Priority support
- All protocols & transactional email
- Forwarders & Catch-All
Unlimited Premium Plus
Enterprise-grade email hosting.
- Unlimited accounts & domains
- Maximum storage + enhanced security
- Priority 24/7 support
- No Ads, full white-label
- Free migration & all features
Custom Enterprise
Large storage plans from 200GB to 15TB
- Unlimited accounts & domains
- Everything in Premium Plus + dedicated infrastructure
- Custom storage up to 15TB
- SLA & 24/7 phone support
All plans include unlimited email accounts, unlimited domains, and full protocol support (IMAP, SMTP, POP3, CalDAV, CardDAV, JMAP, WebDAV).
Ready to Host Multiple Domains for Free?
Set up professional email on unlimited domains in minutes — zero cost forever.
No credit card needed
Frequently Asked Questions
Everything you need to know about multiple domain email hosting