Email images: respect attachment ceilings and embed strategies
`email-attachment-size` covers Outlook, enterprise mail, and phones: total message weight and per-image width affect deliverability and open time. CID embeds behave differently from linked images; optimize so disclaimer text stays readable on a 2x phone, not just a desktop preview. Inline Base64 grows payload ~33%—tighten pixels before debating quality.
Recommended steps for email-bound compression
- Inside `email-attachment-size`, capture per-image and whole-message KB caps, attachment versus inline, and primary clients.
- Keep longest edge near twice a typical column width and verify footnote-sized copy does not collapse into blocks.
- Send test messages to Gmail, Outlook, and iOS/Android, confirming downloaded bytes and whether transit recompresses the art.
Email image compression Q&A
Sales keeps emailing 8MB hero stills—how do you enforce one rule?
Publish max KB and longest edge per image, route overflow to cloud links, and give everyone the same export preset.
Invites look mushy inside Outlook—what usually causes it?
Oversized bitmaps get scaled and recompressed; shrink pixels first, then nudge quality—avoid stuffing giant rasters into the body.
Inline Base64 versus linked images—which needs more aggressive pixel budgeting?
Base64 inflates payload; hit pixel targets harder for the same visual goal; linked art still needs HTTPS and healthy cache headers to avoid 403s.
Before publishing `email-attachment-size` assets externally, which compliance checks are mandatory beyond visual quality?
Start with "define size thresholds explicitly", "align brand policy checks", and "normalize naming conventions", then explicitly verify "approval-gap regressions" and "detail loss after compression" before release approval.
Under deadline pressure, how should teams balance speed and stability in `email-attachment-size` processing?
Start with "normalize naming conventions", "enforce pre-release QA gates", and "lock dimension tiers first", then explicitly verify "color profile mismatch" and "CDN fallback inconsistency" before release approval.