Email OAuth made easy
Send and receive from any email account with every mail client
- Works with Microsoft 365, Gmail, Outlook, and all other providers
- Link your printers, CRMs, ERPs, scan to email, and more
- No impact on deliverability, no message limits
- Take a free trial and get started in seconds
Trusted to handle email accounts at
and many more
Thank you! It works like a dream. I upgraded our subscription.
We really appreciate your product and what it is able to do for us.
The only recommendation we will publish for oauth proxy services.
Thank you so much for your lightning-fast support
I will be having a much better time with my emails
Key Features
Total Compatibility
- Use your email account with any email client, including ones that don't support OAuth
- Quick and easy setup – link your mailboxes in seconds
- Connect unlimited senders and receivers
- Full protocol support: IMAP, POP, SMTP, and all authorization methods
Full Customization
- Use our suite of add-ins to unlock custom mail server behaviors to fit your business
- Enable legacy connection protocols to keep using older mail apps
- Use aliases, shared accounts, or delegated mailboxes
- Create your own OAuth client configurations – all grant types are supported
Easy Management
- Centralized dashboard to manage all accounts at once
- Secure access – monitor account activity, and revoke anytime
- Privacy by design, with secure encryption at all stages
How It Works
Auth-Email is a mail relay that handles the OAuth step for you. Authorize your accounts in Auth-Email's dashboard, instead of in your mail client. Switch your clients to use Auth-Email rather than your provider's email server, and access your account using standard password authentication.
1. Add account
Connect your email account to Auth-Email using secure OAuth 2.0 authentication. We support Gmail, Outlook, 21Vianet, and many more
2. Customize features
Set a password. Optionally, configure advanced Auth-Email features like add-ins, legacy connection protocols, custom clients, and more
3. Update your client
Change your email client's server settings to use auth-email.com
That's it – you're all set!
Your account credentials remain securely encrypted, and cannot be accessed by us
What Our Customers Say
I’ve been administering helpdesk systems for more than 15 years – from small businesses with just three agents to large-scale setups where a single platform connected several dozen people across departments scattered around the globe. Over that time, the lack of native OAuth2 has been a recurring headache, and it became a critical blocker when Microsoft retired legacy protocols.
Auth-Email bridged that gap and allowed me to keep using a proven, high-performing helpdesk without an expensive migration. In practice, this platform continues to outperform well-known alternatives while costing a fraction of the price.
Implementation was straightforward – no clumsy workarounds, no fragile patches. Configure once, and it runs like clockwork. Reliability has been excellent.
A special word about the support – at the early stage I needed some help, and the response was spot on. Quick replies, clear explanations, and a genuinely helpful attitude made the whole setup process smooth and hassle-free.
If you need to connect a non-OAuth2 system to Microsoft 365 securely and reliably, Auth-Email is the best solution I’ve seen in my 15 years of working with support platforms.
Rudolf Reih
Senior Customer Support Systems Administrator
Supported Platforms
Use Auth-Email to access mail from all of these providers and more
Frequently Asked Questions
What is Auth-Email?
Auth-Email is an OAuth proxy that handles all aspects of OAuth authentication for your email accounts, allowing you to use standard password authentication with any email client, app, device, service or script.
How does Auth-Email work?
Auth-Email handles the OAuth step for you. You authorize your accounts in Auth-Email's dashboard, and then use Auth-Email's server settings in your email client to access your accounts using a password you choose.
What are some use cases for Auth-Email?
Auth-Email is ideal for:
- Managing account authorization for multiple email accounts with ease
- Accessing email from clients that don't support OAuth – for example, service desks, CRM platforms, scan to email, printers, and older apps
- Accessing the same account from multiple clients without managing OAuth separately for each one
- Tracking account access and usage
Which email providers are supported?
Auth-Email supports a wide range of email providers, including Gmail, Google Workspace, Microsoft 365, 21Vianet, Exchange Online, Outlook, Windows Live Mail, Hotmail, Yahoo, AOL, Comcast, Yandex, VK Mail and more.
What are the setup details for my Auth-Email account
Our support pages have all the details you'll need to set up your accounts (including servers and ports), plus walkthroughs for advanced features like custom OAuth client flows, account delegation, legacy connection protocols, and add-ins to modify mail server behavior.
Is my data secure with Auth-Email?
Yes – we prioritize your security and privacy. When you authorize your account, your OAuth tokens are securely encrypted with a password you choose. We don't store your password, and your encrypted data cannot be accessed by us.
Will there be any issues with deliverability?
No! Unlike SMTP forwarding services, Auth-Email uses your email provider's original servers, so you can rest assured that your messages will reach their destination. As a bonus, this also means you don't have to worry about DNS configuration, SPF, DKIM or any of the other complex and error-prone requirements for modern email sending.
Are there any message limits?
No. Unlike other services, Auth-Email does not track or limit the number of messages. All plans come with unlimited messages!
Instead, we give a generous monthly bandwidth allowance for each plan. The Starter plan comes with 1 GB, while the Personal plan has 5 GB. The Pro plan includes 50 GB data per month.
Can I manage multiple email accounts?
Yes, Auth-Email allows you to manage multiple email accounts from a single dashboard (including shared or delegated accounts).
The number of accounts that can be added depends on your plan:
- Starter: 1 account
- Personal: 5 accounts
- Pro: 25 accounts
Is Auth-Email free?
We have a free trial available, with a limited set of features.
If you become a yearly subscriber, you get 6+ months free. Take a look at our pricing page for more details.
The reason we charge for Auth-Email is that it costs money to run. We want to be around for the long term, and charging for the service helps us cover our costs and continue improving for our users. That's also why we offer such a large discount for yearly subscriptions.
If you like our service, support Auth-Email by becoming a paid user. It ensures we can keep building the features you need while staying here for the long term.
You can cancel at any time via the subscription management page in your account settings.
Why Choose Auth-Email?
Secure authentication
Enable modern OAuth 2.0 authentication to keep your email accounts safe
Client flexibility
Use any app or device to access your mail – even if it doesn't support OAuth
Simple integration
Set up OAuth for your email accounts one time, then forget about it
IMAP, POP or SMTP
Access your mail account using whichever protocols and authentication methods work for you
Custom behaviors
Use add-ins to make your mail server behave exactly as you need it to
Easy management
Manage and authorize all your OAuth email accounts from a single dashboard