Email Attachments: Best Practices That Don’t Annoy Recipients

Large attachments frustrate recipients and increase the chance of bounces or spam filtering. Prefer links for heavy assets; when attachments are necessary, compress images responsibly. Target under a few megabytes total, and keep individual images under ~1MB where possible.

Use appropriate formats—JPEG or WebP for photos, PNG only when lossless transparency or razor‑sharp edges are required. Include meaningful filenames, avoid spaces, and keep versions explicit. A little polish goes a long way toward professional communication.