Skip to main content

Documentation Index

Fetch the complete documentation index at: https://documentation.outpost.pub/llms.txt

Use this file to discover all available pages before exploring further.

Email Design Settings control the appearance and sender identity for all emails sent through Outpost — including autoresponder flows, campaigns, and system notifications. This is where you set your from address, upload a header image, and customize colors and fonts to match your publication’s branding.
Email Design Settings page with sender identity fields, header image upload, color pickers, font selectors, and custom HTML template editor

​
Sender identity

FieldDescription
Email from addressThe email address recipients see in their inbox (e.g., hello@yourpublication.com). Required. Managed by Outpost.
Email Reply-to AddressThe address used when a recipient replies to one of your emails. Set this if you want replies to land somewhere other than the from address.
Email from nameThe sender name recipients see (e.g., “The Daily Brief”). Required.
Email from physical addressOptional physical mailing address included in the email footer for CAN-SPAM compliance.
For the best sender reputation, use an address on your Autoresponder Sending Domain rather than the default Outpost domain.

​
Design options

​
Header image

Upload a logo or banner image that appears at the top of every email. The header image is the only image field in Email Design Settings — it renders centered at the top of every email Outpost sends. Click Remove to go back to a text-only header.

​
Suggested sizes

What you’re optimizing forRecommended source sizeWhy
Standard display580px wideThe header renders at up to 580px wide in most email clients.
Retina / high-DPI display (recommended)1160px wideSharp rendering on retina displays (2× the display width). This is the size Outpost recommends for most publications.
Wider source filesAnything up to your file-size limitOutpost automatically resizes them down to 1160px wide on upload.
  • File format: PNG, JPG, GIF, or WebP
  • Max file size: 2 MB
  • Aspect ratio: Anything works — Outpost preserves your aspect ratio when resizing
  • Height: No fixed limit, but tall headers push content below the fold; most publications keep their header under ~200px tall

​
Auto-resize on upload

Outpost automatically resizes oversized header images on upload:
  • Images wider than 1160px are scaled down to 1160px wide.
  • The original aspect ratio is preserved — Outpost does not crop.
  • Images at or under 1160px wide are stored as-is.
You can drop in a high-resolution logo straight from your design tool without exporting a smaller version first. The resized image is what gets stored and embedded in every email.
For the crispest header, upload at exactly 1160px wide. Outpost serves that size to all clients and email apps display it at 580px on standard screens or full size on retina screens — covering both cases without scaling artifacts.

​
Plain text mode

Toggle Plain Text Emails on to strip all styling from your emails. When enabled, emails are sent as plain text without colors (including link colors), fonts, or the header image. This can improve deliverability for some audiences. When plain text mode is off, the following design options are available:

​
Colors

SettingDescription
Border/Background ColorThe outer border and background color of the email wrapper.
Body ColorThe background color of the email content area.
LinkThe color applied to links (<a> tags) in the email body.
Clicked linkThe color applied to active, visited, and hover states of links.

​
Fonts and text

SettingDescription
Email TitleFont family (default: Open Sans), size (default: 18px), and color for email headings.
Email ContentFont family (default: Open Sans), size (default: 14px), and color for body text.
Email FooterFont family (default: Open Sans), size (default: 12px), and color for footer text.

​
Custom HTML template

For full control over your email layout, use the Custom HTML Template editor. This lets you write raw HTML that wraps your email content.

​
Available merge tags

TagDescription
%CURRENT_DATE%Today’s date
%BODY%The email body content (from the template)
%SITE_PATH% / %BLOG_PATH%Your site’s base path
%SITE_NAME% / %BLOG_NAME%Your publication name
%SITE_URL% / %BLOG_URL%Your publication URL
%SITE_LOGIN_URL% / %BLOG_LOGIN_URL%Your publication’s sign-in page URL
%ACCOUNT_LINK%Member’s account page URL
%EMAIL_FROM_NAME%The sender name configured in Email Design Settings
%EMAIL_HEADER_IMAGE%The header image URL
%SUBSCRIPTION_EXPIRATION_DATE%Member’s subscription expiration date
%RECIPIENT.PAID_BLOCK_START%Start of paid-member-only content block
%RECIPIENT.PAID_BLOCK_end%End of paid-member-only content block
%RECIPIENT.FREE_BLOCK_START%Start of free-member-only content block
%RECIPIENT.FREE_BLOCK_END%End of free-member-only content block
%UNSUBSCRIBE_URL%Member’s unsubscribe link
The %BLOG_*% and %SITE_*% prefixes are interchangeable — for example, %BLOG_NAME% and %SITE_NAME% produce the same output. Use whichever you prefer.
The paid block end tag uses mixed case: %RECIPIENT.PAID_BLOCK_end% (lowercase “end”). The free block end tag uses uppercase: %RECIPIENT.FREE_BLOCK_END%. Using the wrong case will prevent the conditional block from rendering correctly.

​
Preview

Use the Preview tab to see how your custom HTML renders. Toggle between Free Member and Paid Member views to verify conditional content blocks display correctly.

Email Templates

Create the email content that uses these design settings.

Autoresponder Sending Domain

Send from your own domain for better deliverability.

Mailgun Integration

Mailgun delivers all emails styled with these settings.

​
FAQ

Yes. Colors, fonts, header image, and custom HTML affect all emails sent through Outpost — autoresponder flows, campaigns, and system notifications.
Yes. In your custom HTML template, use %RECIPIENT.PAID_BLOCK_START% and %RECIPIENT.PAID_BLOCK_end% to wrap content visible only to paid members. Use the free equivalents (%RECIPIENT.FREE_BLOCK_START% / %RECIPIENT.FREE_BLOCK_END%) for free-member-only content. Note the lowercase “end” in the paid block end tag. The preview tab lets you toggle between views.
All styling is stripped — no colors, fonts, header image, or custom HTML. Emails are sent as plain text. This can be useful for audiences where plain text performs better (e.g., business/enterprise).
Upload at 1160px wide. The header renders at up to 580px in most email clients, so 1160px gives you sharp display on retina screens (which render at 2× density). Outpost auto-resizes anything wider than 1160px down to 1160px on upload — your aspect ratio is preserved. Max file size is 2 MB.
No — Outpost only scales down images wider than 1160px, preserving the full aspect ratio. Nothing gets cut off. If you want to reframe the image, edit it before uploading.
The header image is the only image you can configure in Email Design Settings. To add more imagery (hero images, signature images, social icons, etc.), use the Custom HTML Template to embed <img> tags pointing to your own hosted images, or include images inside individual email templates where they’re part of the email body.