Mailchimp Free Plan (500 contacts)
Mailchimp
You had tolerated tiny mailing lists, amateur launch notes, and an impressive amount of false optimism. Then your free plan went on a diet and everyone else had to count calories.
→ Read moreMemorial entry / hubspot-marketing-email-api-v1
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You had remained in production mostly because nobody wanted to reopen that part of the codebase. Your funeral was attended by every postponed migration ticket.
It had exposed HubSpot Marketing Email API v1 until HubSpot retired it and pushed developers onto newer interfaces.
This source records the retirement of HubSpot Marketing Email API v1 and the provider's migration or end-of-support guidance.