Never Miss a Follow-Up with SaneNoReplies
SaneNoReplies helps you keep track of emails you’ve sent that may still need a response. Instead of trying to remember who owes you a reply, SaneBox keeps those conversations together in your @SaneNoReplies folder.
With Smarter reply tracking, SaneBox can also use AI to recognize when a message probably doesn’t need a response, so emails like “Thank you,” “Sounds good,” or “FYI” don’t clutter your follow-up list.
How SaneNoReplies Works
SaneNoReplies tracks emails you initiate and helps surface conversations that haven’t received a reply.
It focuses on messages where you’re waiting on someone else rather than filling the folder with every email you’ve sent.
Smarter reply tracking
Turn on Smarter reply tracking to make SaneNoReplies more selective about which sent messages it tracks. When enabled, AI reads the intent of each message you send and skips messages that don’t appear to expect an answer.
For example, messages such as:
“Thank you!”
“Sounds good.”
“FYI”
Other messages that don’t ask for or expect a response can be automatically excluded from SaneNoReplies. Smarter reply tracking is recommended if you want SaneNoReplies to focus on conversations where you’re actually waiting for someone to get back to you.
When You Need a Reply by a Specific Time
If you need a response by a particular date or time, use SaneReminders.
Add a SaneReminder address to the CC or BCC field when sending your message, for example:
10hours.resend@sanebox.com
This gives you a more specific follow-up reminder rather than relying only on SaneNoReplies.
What to Do with Emails in SaneNoReplies
When an email appears in @SaneNoReplies, you can:
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Follow up: Open the email and send another message to the recipient.
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Stop tracking it: If you no longer need a response, remove the email from @SaneNoReplies.
Gmail and Google Workspace users
Gmail uses labels instead of traditional folders. Remove the SaneNoReplies label while leaving the Sent label intact if you want the message to remain in Sent without appearing in SaneNoReplies.
SaneNoReplies Settings

You can customize SaneNoReplies from its settings page.
Smarter reply tracking [Recommended]
AI reads the intent of each message you send and skips messages that don’t appear to expect an answer.
Turn this on if you want SaneBox to automatically distinguish between emails that likely need a response and messages that don’t.
Flag a reply as overdue
Choose how long SaneBox should wait before considering a reply overdue.
For example, you can have emails appear in @SaneNoReplies immediately or wait a specified amount of time.
Keep tracked emails marked as read
Enable this option if you don’t want emails added to @SaneNoReplies to increase your unread message count.
Ignore calendar events
Enable this option to prevent meeting invitations and other calendar messages from being tracked as conversations that need a reply.
After changing your settings, click Save.
Why Isn’t an Email in SaneNoReplies?
- There are several reasons an email might not appear:
- You didn’t initiate the conversation.
- The message was sent outside the tracking period.
- A reply has already been received.
- You used a SaneReminder address for the message.
- The message indicated that no response was needed, such as NRN, FYI, or NNTR.
- Smarter reply tracking determined from the message’s intent that you weren’t expecting an answer.
Why Is an Email Still There After Someone Replied?
There are a few possible reasons:
- SaneBox may still be processing a recent reply. Allow up to an hour.
- Not all recipients have replied.
- The reply headers don’t match the original sent message closely enough for SaneBox to identify the response.
Why Is My SaneNoReplies Folder Empty?
SaneNoReplies does not populate retroactively. It begins tracking eligible messages after the feature is enabled.
If Smarter reply tracking is enabled, you may also see fewer messages because SaneBox skips sent emails that don’t appear to require a response.
A Few Things to Know
The sender shown in SaneNoReplies will usually be you, since these are messages you’ve sent. Open the email to see the recipient.
Sent messages are normally marked as read. Depending on your SaneNoReplies settings, tracked messages can be marked unread to make them easier to spot.
Don’t manually move emails into @SaneNoReplies. SaneBox manages this folder automatically.
Emails you send to yourself won’t appear in SaneNoReplies. Use SaneReminders when you want to remind yourself about something later.

