cpcp vs email attachments
Email fits messages that need a body, CCs, and a long-term record. cpcp fits handing one large file to another device or person temporarily.
At a glance
This compares common consumer use, not a security audit. Third-party products change; check their current documentation. cpcp is not affiliated with them.
| Option | Best for | Requires | Trade-offs |
|---|---|---|---|
| Email attachment | Formal messages and a long-term record | Email addresses and a mail provider | Attachment limits vary by provider, often around 25MB; attachments stay in the mailbox |
| cpcp | Sending one large file temporarily | A browser and a 6-digit pickup code | Expires after one hour; 100MB per file, 200MB total; no resume |
Choose cpcp when
- The file is larger than a typical email attachment limit.
- You do not want to create an email thread or CC a group for one temporary file.
- You want the file to expire after one hour instead of staying in a mailbox.
- You only need a pickup code, not a message body, signature, or archive.
Choose email when
- You need a message body, CCs, attachments, and a searchable long-term record.
- The file is small and the recipient already communicates by email.
- Your organization requires mail archiving or compliance records.
Common questions
Can cpcp replace email?
No. cpcp has no message body, CC, archive, or long-term storage; it is only for a temporary one-off transfer.
Why do email attachments often fail for large files?
Mail providers set their own attachment limits, often around 25MB. cpcp currently allows 100MB per file and 200MB per parcel.
How long does cpcp keep a file?
It expires after one hour and can no longer be picked up; storage is cleared within 10 minutes after that and cannot be recovered.