Newsletter sponsorship specifications

A newsletter sponsorship is the most direct placement we sell: your message lands in an inbox the reader opted into. It works when the copy sounds like the newsletter, not like an advertisement dropped into it.

Placement types

Placement	What it is	Typical position
Primary sponsor	Banner + short copy block, labelled “Sponsored by”	Top of the issue
Featured item	Image + 40–80 words inside the main list of items	Mid-issue
Text-only mention	1–3 sentences in the editor’s voice, disclosed	Within the body
Dedicated send	A whole email about you, sent to the list	Separate send, publisher approval required

The publisher decides which placements are available and where they sit. Our inventory guide for publishers describes the same placements from their side.

Image specifications

Element	Size	Format	Weight
Primary sponsor banner	600 × 200 px, export at 1200 × 400	JPG / PNG	≤ 200 KB
Featured item image	600 × 300 px, export at 1200 × 600	JPG / PNG	≤ 250 KB
Logo	300 px wide, transparent background	PNG (SVG rarely supported in email)	≤ 60 KB

Email clients do not reliably render SVG, WebP or animated GIF. Stay with JPG and PNG. Put the logo inside the banner image rather than relying on a separate logo slot, and keep any text in the image large — the banner is often viewed at 320 px wide on a phone.

Copy specifications

Element	Length	Guidance
Headline	≤ 60 characters	One idea. Sentence case. No exclamation marks.
Body copy	40–120 words	Written for the reader: what they get, why it matters, what to do next.
Call to action	2–5 words + tracked link	“See the guide”, “Book a call”, “Get the checklist”.
Disclosure	Set by the publisher	Usually “Sponsored” or “Partner message”. Do not ask to remove it.

Write it like the newsletter

Read three past issues before writing. Match the length of sentences, the level of formality and whether the editor uses “you”. The best-performing sponsor copy is often the one readers do not notice as an ad until the disclosure — because it was useful.

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Links

Use one tracked link per placement, built with the UTM link builder. Use utm_medium=newsletter, the publisher’s name as the source and the placement as content — so a sponsor banner and a featured item in the same issue can be told apart in the report.

Dedicated sends

A dedicated send is a full email about you. It needs publisher approval and their own template. Supply:

• subject line (≤ 50 characters) and preview text (≤ 90 characters);
• 150–300 words of copy in the publisher’s voice, with one call to action;
• a 600 × 300 hero image and your logo;
• a plain-text version, which we can produce.

Review and timing

Publishers typically need final creative 5 business days before the send date, and reserve the right to edit copy for house style. We send you the edited version before it runs. Most newsletters go out on a fixed day, so a missed deadline means a missed week, not a delay of a day.

Creative checklist