Attaching a file to an email and getting an immediate bounce-back error about size limits is one of those small frustrations that always seems to happen at the worst possible time — right before a deadline, right when a client is waiting. The limits themselves are fairly consistent across providers, and there are a few reliable ways around them.
Gmail, Outlook, and most major email providers set attachment limits somewhere around 25MB total per email — combining all attached files, not per file. A handful of high-resolution photos, or one longer video clip, can hit that ceiling faster than people expect.
Before reaching for a file-sharing link, it's worth checking whether simply compressing the attachments gets you under the limit — a few photos that are individually a few megabytes each can often be compressed down enough to fit comfortably within a normal email, without needing any extra steps for the recipient.
For files too large to reasonably compress into an email-friendly size — a lengthy video, a large batch of high-resolution images — uploading to a cloud storage service and sharing a link avoids the attachment limit issue entirely, though it does require the recipient to click through and download rather than getting the file directly in their inbox.
Combining several files into a single compressed archive makes them easier to send and organize as one attachment, but it's worth knowing this doesn't always reduce total size dramatically — file formats that are already compressed, like most photos, don't shrink much further just by zipping them together.
If your total attachments are hovering anywhere near 20MB, compress the images first before attaching — it's the fastest, simplest fix, and in most cases gets you comfortably under the limit without needing to switch to a cloud link at all.
A bounced email over file size is completely avoidable with a quick compression step beforehand — worth doing as a habit any time you're attaching more than a photo or two.