Email attachments
Compress video for email when the attachment is too large
Most email providers cap attachment size around 25 MB. BotMart produces a smaller MP4 you can attach or link after download.
When Gmail, Outlook, or your company mail server rejects a video, the fix is almost always a smaller file—not a different format alone. Compress in the cloud, download the result, then attach it to your message.
Why compress before emailing?
- Fit provider limits — Many services block attachments above roughly 25 MB (varies by provider).
- Faster for recipients — Smaller downloads on mobile and slow office networks.
- Keep MP4 compatibility — H.264 MP4 plays on virtually every device your recipient uses.
Which preset should I use?
For email, prioritize file size over maximum resolution:
- Talking-head or screen recording — Social (horizontal) or YouTube (1080p-class).
- Vertical phone clip — Social (vertical).
- Still over the limit? — Run compression again on the output or upgrade to PRO for larger source files.
How to compress for email (step by step)
- Sign in (free account).
- Upload on the video compressor.
- Choose a preset and start compression.
- Download the MP4 and check the file size on disk.
- Attach to your email—or upload to cloud storage and send a link if it is still too large.
iPhone MOV files
Email clients often prefer MP4. Convert with MOV to MP4 first if needed, then compress.
FAQ
What size can I email?
Gmail and many providers use about 25 MB per attachment; corporate servers can be stricter. Aim well under your provider's limit for reliable delivery.
Should I use a link instead?
If compression is not enough, host the file elsewhere and paste a link. BotMart is for making attachments small enough to send directly.
How long are files stored?
Uploads and outputs are removed automatically within 24 hours. Only you can access your jobs while they exist.