You sent the email without the attachment
Why it happens
You write "please find attached", then get pulled into the next thing before attaching. Some clients warn you; many do not, especially on mobile.
The right follow-up
- Reply in the same thread rather than starting a new message, so the document stays with its context.
- Keep the note short. A long apology makes a small thing larger.
- Name the file and its version explicitly.
The real problem: two messages, one document
Once a document arrives separately from the message that explains it, the thread contains several candidate files. Weeks later, someone opens the wrong one. Missing attachments quietly become wrong-version incidents.
A cleaner pattern
Share the document as a FINIS link rather than a file. There is one place the document lives, you can see whether it has been opened, and if the version changes you can revoke access to the old one instead of hoping nobody opens it.
How FINIS handles this
FINIS is a post-send control platform for documents. You send the file as a FINIS link instead of an attachment, and the controls stay with you.
Revoke access
End access to a document after it has been sent, even after it was opened.
Auto-expire
Give the document a lifetime at the moment you send it.
Track opens
See when the document was opened and how it was accessed.
Summon
Request a document through a single-use upload link.
Authenticity seal
Prove the document came from you and has not been altered.
Verify
Check a document's certificate against the original record.
Questions
What do I write when I forgot the attachment?
Reply in the same thread with the file and one short line naming the document. Avoid a long apology.
Can I add an attachment to an email already sent?
No. A delivered message cannot be changed. You can only send a follow-up, or share a link whose contents you still control.
How do I avoid version confusion?
Share one controlled link instead of attaching files. Old versions can be revoked so only the current document opens.
Can I ask someone else for a document the same way?
Yes. Summon sends a single-use upload link, and the document arrives in your account encrypted.
Related reading
Other guides in the post-send control series.
Common email mistakes
The full list and how to contain each one.
Summon a document
Requesting files through a single-use link.
Post-send email control
Why delivery should not end your control.
Send everything. Fear nothing.
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