Using Simple Memo with
Custom Domain Email
Learn how to set your custom domain email address (e.g., user@company.com) as the destination in Simple Memo. Works with Google Workspace, Microsoft 365, Fastmail, Zoho, and any IMAP/POP-compatible email hosting. Perfect for professional memo workflows.
Before You Begin
- iPhone (iOS 16.0 or later)
- A working custom domain email address (e.g., yourname@company.com) that can receive emails
- Access to check that email during setup — via mail app or webmail
- Confirm your organization doesn't block external email from new senders
- Simple Memo downloaded from the App Store
Setup Steps (5 Steps)
-
Verify your custom domain email works
Send a test email to your custom domain address (e.g., yourname@company.com) and confirm it arrives. For newly configured addresses, verify that DNS settings (MX records) are correctly propagated. -
Download the app and open Settings
Search "Simple Memo Fast" on the App Store, or use this direct link. Once installed, tap the gear icon in the bottom-right corner to open Settings. -
Enter your custom domain email address
In the "Destination Email" field, type your custom domain address (e.g., yourname@company.com). Then tap "Send Verification Code." -
Enter the 6-digit code from your email
Check your custom domain mailbox for the verification email. Look in Spam or Quarantine folders if needed. Enter the 6-digit code in the app and tap "Verify." -
Set up email rules to organize memos
In your email client (Gmail, Outlook, Thunderbird, etc.), create a filter or rule for emails from noreply@simplememofast.com. Auto-move them to a "Memos" folder or label. Your professional memo workflow is now complete.
Business Use Cases
Tips: Organizing Memos with Custom Domain Email
Corporate email servers often have strict spam filters or quarantine systems. Ask your IT admin to whitelist noreply@simplememofast.com to ensure verification codes and memos arrive reliably.
If you use Google Workspace, create a Gmail filter with "from:noreply@simplememofast.com" to auto-label memos with a "Memos" label. You can also auto-star them to flag action items in your inbox.
For Microsoft 365, create an Outlook rule to auto-move emails from the sender to a "Memos" folder. If Focused Inbox is enabled, move the first memo to "Focused" to train the classifier.
Troubleshooting
Corporate email servers may block external emails through spam filters, quarantine systems, or security gateways. Ask your IT admin to whitelist noreply@simplememofast.com. We recommend testing with a personal email (e.g., Gmail) first to verify the app works.
Shared hosting email services may have aggressive spam filters. Check your hosting control panel for spam settings and add simplememofast.com to your allowed senders list.
Receiving email on a custom domain requires correct MX records. If you can receive other emails but not from Simple Memo, the issue is likely sender blocking rather than DNS configuration.
Currently, Simple Memo supports one destination email at a time. You can change the destination anytime in Settings, allowing you to switch between work and personal addresses as needed.
FAQ
Can I use a work email on a custom domain?
Yes. Simple Memo works with any email address that can receive standard SMTP emails. This includes Google Workspace, Microsoft 365, Fastmail, Zoho, and any IMAP/POP-compatible hosting. If your organization blocks external senders, ask your IT admin to whitelist noreply@simplememofast.com.
Which email hosting services are supported?
Any service that receives standard SMTP email. This includes Google Workspace, Microsoft 365, Fastmail, Zoho Mail, AWS WorkMail, and shared hosting providers. If it has an inbox, it works with Simple Memo.
Is my memo content secure?
Yes. Offline memos are encrypted with AES-GCM on your device. Sending is handled via Cloudflare Workers and Resend API — memo content is not stored on our servers. Once delivered, your memo is protected by your email service's security.
How many memos can I send per day?
The Free plan allows 3 sends per day (free forever). Premium ($2.99/month or $29.99/year) unlocks unlimited sends.
What happens to memos I write offline?
Memos are stored locally with AES-GCM encryption and automatically sent when you reconnect. Perfect for business trips or areas without Wi-Fi — your memos are never lost.
Related Pages
References
- RFC 5321 — Simple Mail Transfer Protocol (SMTP) — Core email transmission protocol specification underlying custom domain email delivery
- Wikipedia — MX Record — How MX records work and how to configure them for custom domain email routing
- Google Workspace — Set Up MX Records — Official guide for configuring custom domain MX records in Google Workspace
- Microsoft 365 — Create DNS Records — Official guide for creating DNS records for custom domains in Microsoft 365
- Simple Memo - for Obsidian — App Store — Simple Memo - for Obsidian App Store download page