Even after Gmail's "External Email Import" ends, your inbox doesn't have to.

Aggregate POP3 emails into a "secure cloud inbox". Read the same emails on PC or smartphone, anywhere.

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※ Gmail's external email import (POP) is no longer available.
※ Android/iOS apps are scheduled to be available by the end of March 2025. Currently, you can use the Web app.

External Email → CloudInbox → Device (PC/Smartphone)

The convenience of consolidating emails in Gmail is no longer available

Previously, Gmail allowed you to import other email accounts via POP and manage them in a single inbox.

However, this feature has been discontinued.

→ Now, an alternative is needed.

CloudInbox is an alternative to "External Email Import"

CloudInbox is a service that securely receives POP3 emails and aggregates them into a cloud-based mailbox.

📧

Aggregate POP3 Emails

Consolidate external emails into one inbox

🌐

Same Inbox Anywhere

PC, smartphone, and tablet support

※ Android/iOS apps scheduled for end of March 2025

🔒

Secure with Encryption

Safe even in the cloud

How it Works

1

Register External Email (POP3) Connection Information

Set up your mail server information and password.

2

CloudInbox Periodically Receives Emails

Automatically fetches emails and saves them to the cloud.

3

Saved to Encrypted Cloud Inbox

Emails are encrypted and stored securely.

4

View from Browser or Smartphone

Access the same inbox anytime, anywhere.

External Mail Server → (POP3) → CloudInbox → (Encrypted Storage) → Browser/Smartphone

Your Inbox is No Longer Tied to Your Device

In CloudInbox, emails are stored in a cloud-based inbox.

  • On your work PC
  • On your home PC
  • On your smartphone

You can view the same inbox anytime.

Since it's not device-dependent, no setup is needed when you replace your PC.
※ Android/iOS apps are scheduled to be available by the end of March 2025. Currently, you can use the Web app.

Consolidate Multiple Emails into One

You can aggregate POP3-compatible emails such as custom domain emails, provider emails, and rental server emails into CloudInbox.

  • No need to switch accounts
  • Prevent missed emails
  • Simplified email management

Emails are Stored "Encrypted"

CloudInbox stores email bodies in encrypted form. Third parties cannot read the content.

Encryption and "Key Management" are Separate

CloudInbox manages the "keys" that decrypt the encryption using Google Cloud's dedicated services.

Cloud KMS

Securely store and manage encryption keys

  • Key rotation
  • Access control
  • Audit logs

Secret Manager

Securely store confidential information such as passwords

  • Not stored directly in code
  • Only accessible to necessary processes

Keys and passwords are never stored directly in applications or databases.

Email Body (Encrypted) / Key (KMS) / Confidential Information (Secret Manager)

Recommended For

  • Those who were consolidating external emails in Gmail
  • Solo entrepreneurs using custom domain emails
  • Those managing multiple work emails
  • Those concerned about security but don't want to sacrifice convenience

Plans

Free
$0 /month
  • Storage 2GB
  • 1 Email Account
  • Automatic Email Reception
  • Cloud Inbox
  • Encrypted Storage
  • PC & Smartphone Support
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Standard
$5 /month
  • Storage 50GB
  • Multiple Email Accounts
  • Automatic Email Reception
  • Cloud Inbox
  • Encrypted Storage
  • PC & Smartphone Support
  • Ad-free
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Why Choose CloudInbox as a Gmail Alternative

Feature Gmail CloudInbox
External POP Import ✕ (Discontinued) ✓
PC Browser ✓ ✓
Inbox Consolidation △ ✓
Encryption Explanation Unclear Clear
Key Management Private KMS Managed

Frequently Asked Questions

Q. Is it a complete replacement for Gmail?
A. CloudInbox is an alternative to "External Email Import (POP3 aggregation)".
Q. Is POP3 secure?
A. After reception, emails are encrypted and stored securely.
Q. Where are passwords stored?
A. They are securely managed in Secret Manager.
Q. Is there a smartphone app?
A. Android/iOS apps are scheduled to be available by the end of March 2025. Currently, you can use the Web app (PC and smartphone browser compatible).
Q. Are there any notes about sending emails?
A. Email sending may not be available due to IP restrictions on the mail server. Please add the allowed IP to your mail server, or use other email clients to send emails.

Even after Gmail's change, keep your inbox in one place

You don't have to give up on managing external emails. With CloudInbox, securely and simply.

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