Your inbox, inside your team chat
Your team already lives in Slack. Bring email there too. Read, discuss, and reply together. Customers get a normal email back.
Setup in 2 minutes. 7-day free trial. Cancel anytime.
Works with
Same email. Two very different outcomes.
A customer emails support@yourcompany.com about a billing issue. Your team gets the notification. Here is what happens next.
Lisa sees the notification
9:00 AM, but it is a billing question, not her area
She messages Marcus on Slack
"Can you check this billing email?" Forwards a screenshot
Marcus is in meetings until 11
The email sits. Nobody else knows it is waiting.
Marcus opens Gmail, finds the thread
Scrolls past 40 other emails, drafts a reply
Reply sent
12:40 PM, nearly 4 hours later
3 tools used. 2 context switches. No record of who handled it.
Email appears in #support on Slack
9:00 AM, the whole team sees it instantly
Lisa tags Marcus in the thread
"@marcus billing question, can you take this?"
Marcus is busy, Elena picks it up
The thread is visible to everyone. No email gets lost.
Elena replies from Slack
Types the answer in the thread. Hits reply. Done.
Customer gets a professional email
9:14 AM, 14 minutes later
1 tool. Zero context switches. Full audit trail.
How it works
Four steps. Two minutes. Zero passwords shared.
Connect your email
Gmail, Outlook, or any IMAP account. OAuth only, no passwords.
Emails land in chat
Every new email appears in your Slack, Discord, or Teams channel instantly.
Discuss and reply
Your team talks it over in the thread, then sends the final answer.
Customer gets an email
A normal, professional email reply. They never know you used Slack.
See the journey of an email
From inbox to reply, every step happens inside your team chat.
Every email lands in the right channel, instantly
No more checking Gmail. Emails arrive in Slack, Discord, or Teams the moment they hit your inbox. Smart rules put them in the right channel automatically.
- Instant forwarding to Slack, Discord, or Teams
- Smart routing by sender, subject, or keyword
- VIP contacts get priority channels
- Auto-threading keeps conversations together
- Block spam with one click
Re: API integration - getting 500 errors
Hi team, we're still seeing intermittent 500 errors on the /users endpoint since yesterday's deploy...
I checked the logs. It's the rate limiter on the new deploy, rolling back now.
Good catch. Let's reply that we found the issue and are fixing it.
Quick replies
3 people discuss. Customer sees one perfect reply.
Your team talks it over right in the thread. When ready, send the reply. The customer gets a normal email back. They never know you used Slack.
- Internal discussion hidden from customer
- Quick reply templates, one click to send
- AI translation in 15+ languages
- Auto-reply for off-hours
- Schedule replies for later
Every email tracked. Every reply measured.
No more guessing. See who replied, how fast, and which emails are still waiting. SLA alerts warn you before a deadline passes.
- Team leaderboard with response times
- SLA tracking with breach alerts
- Daily and weekly email reports
- Thread assignment tracking
- Webhooks for CRM integration
Weekly team performance report:
Your AI teammate that never sleeps
Bring your own OpenAI or Anthropic key. No hidden costs, no markup. AI works alongside your team to handle the repetitive stuff.
Auto translation
Customer writes in Spanish, you reply in English, they get Spanish. 15+ languages, auto-detected.
Email categorization
AI reads every incoming email and tags it automatically. Support, sales, billing, spam. All sorted before you see it.
Smart auto-reply
Set rules for off-hours or common questions. AI drafts a reply based on your style. You approve or edit before it sends.
AI draft:
"Thanks for reaching out! Our team is looking into this and will get back to you within 2 hours."
Works with OpenAI and Anthropic. Use your own API key, no hidden fees.
5
platforms supported
80%
faster replies
20 min
avg reply time
2 min
avg setup time
Connects with the tools you already use
Email Providers
Gmail
Google OAuth, one-click setup
Outlook
Microsoft OAuth, enterprise ready
Any IMAP/SMTP
Manual setup, works with any provider
Chat Platforms
Slack
OAuth install, per-workspace
Discord
Bot invite, auto channel setup
Microsoft Teams
Bot integration
Telegram
Bot token setup
Business API integration
Extend & Connect
Outgoing webhooks
Send events to any URL
CRM integration
Connect to your existing tools
Custom routing rules
Route by sender, subject, or keyword
Built for teams that take security seriously
OAuth only, no passwords
We never ask for or store your email password. Authentication uses OAuth 2.0 only.
SOC 2 compliant audit trail
Our cloud infrastructure meets SOC 2 Type II compliance requirements.
AES-256 encryption at rest
All access tokens are encrypted using AES-256 before being stored.
Self-hosted option available
Run MailFellow on your own infrastructure for complete control.
TLS on every connection
All data in transit is encrypted with TLS 1.2 or higher.
Docker deployment in minutes
Deploy with a single docker-compose command. Up and running fast.
GDPR compliant
Export and delete your data anytime. Full consent tracking.
Your server, your data
With self-hosting, your data never leaves your infrastructure.
Plans that grow with your team
7-day free trial on all plans. No credit card required.
Pro
- 1 email account
- All platforms (Slack, Discord, Teams...)
- 3 team members
- Team reply, quick replies
- Auto-reply, scheduled send
- VIP contacts, routing rules
- Full dashboard
- AI: categorization, summary (1M tokens/mo)
Business
- 10 email accounts
- Unlimited team members
- Everything in Pro
- SLA tracking, CSAT surveys
- Team leaderboard, detailed reports
- Custom webhooks, audit log
- AI: categorization, summary, translation (3M tokens/mo)
Enterprise
- Unlimited email accounts
- Unlimited team members
- Everything in Business
- SSO / SAML
- On-prem / self-hosted
- Dedicated support
- SLA guarantee
- AI: unlimited tokens
All plans include 7-day free trial. Cancel anytime.
Frequently asked questions
Getting started
How does the free trial work?
Every plan comes with a 7-day free trial. No credit card required to start. You get full access to all features in your chosen plan during the trial period.
Which email providers do you support?
MailFellow works with Gmail, Outlook, and any email provider that supports IMAP. Gmail and Outlook connect via OAuth 2.0. For other providers, you can use standard IMAP credentials.
Features & platforms
What chat platforms do you support?
MailFellow supports Slack, Discord, Microsoft Teams, Telegram, and WhatsApp. On the Pro plan you can choose one platform. On Business and above, you can use multiple platforms simultaneously.
Can I reply to emails from my chat platform?
Yes. You can reply directly from your Slack or Discord thread. Your reply is sent as a real email from your connected account. The recipient sees a normal email, not a bot message.
What languages does the AI translation support?
MailFellow supports 15+ languages with auto-detection. It uses your own OpenAI or Anthropic API key. Incoming emails are translated automatically, and your replies are translated back to the customer's language.
Do I need to pay for AI separately?
Yes, you use your own API key from OpenAI or Anthropic. There is no hidden markup. You pay the provider directly at their standard rates.
How is my data secured?
We use OAuth 2.0 for authentication, never storing your passwords. All tokens are encrypted at rest with AES-256. All connections use TLS 1.2+. We are GDPR compliant with full data export and deletion.
Is MailFellow GDPR compliant?
Yes. You can export your data, delete your account, and we track consent. Your data is processed according to GDPR requirements.
How does team reply work?
On Business plans and above, you can authorize team members to reply to emails from your connected account. They discuss in the thread, and when ready, any authorized member can send the final reply. The customer sees one professional response.
Security & billing
What is the self-hosted option?
Self-hosting is available as part of the Enterprise plan. You get the full MailFellow application to run on your own server with Docker. Your data never leaves your infrastructure. Contact us for details.
Can I cancel anytime?
Yes. You can cancel your subscription at any time from your dashboard. Your account will remain active until the end of your current billing period. No questions asked.