Swapstack
Swapstack helps advertisers find and sponsor newsletters at scale and lets publishers sell sponsorship slots.
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CategoryMarket
SectionEmail & newsletters
Websiteswapstack.co
Last checked live2026-11-12
More in Email & newsletters · 341 tools
- LetterheadLetterhead is an email platform for teams to write, measure and automate newsletters.
- MaildosoMaildoso provides mailboxes built for cold email with quick setup and deliverability focus.
- NotisendNotiSend is a Russian platform for sending email, SMS and messenger campaigns with an email builder.
- DeBounceDeBounce validates and cleans email lists in bulk and offers real-time checks on signup forms.
- MailerLiteMailerLite is an email marketing tool with drag and drop editor, automation and a free plan.
- OngageOngage is an email marketing platform for personalized sending, list data use and deliverability management at scale.
- NotixNotix is a web push notification service for re-engaging website visitors on desktop and mobile, with a free plan.
- PrefineryPrefinery runs viral waitlists and referral programs so startups can collect signups before launch.
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