# Email Attachment Checker — yeezhan.com
> One-time pay-per-task emergency tool to make your file ready for submission.
> No credits, no balance. One payment unlocks one task result, valid for 24 hours.

Tool domain: https://email-attach-check.yeezhan.com
Skill definition: https://email-attach-check.yeezhan.com/skill/SKILL.md
API documentation: https://email-attach-check.yeezhan.com/api/docs

## What this tool does
Total attachment size vs provider limit, per-file breakdown and dangerous-extension warnings — before the bounce.

## Typical user problems
- Email providers silently bounce oversized or executable attachments. Know the total size and the blocked formats before you hit send.

## Parameters
- limit_mb: enum, required. 邮箱附件上限

## Pricing
- Watermarked preview: free, no login required
- Final clean output: $0.99 one-time per task
- Require login (email/phone OTP) to complete payment
- Result available for download 24 hours after payment

## Limitations
- Max input 100 MB
- 1+ 个文件