Same issue. Support says they are working on it. it’s now 2 months later. this is critical issue because we have switched to New Customer Accounts and this leaves the customer with no way to login.
Topic summary
Multiple Shopify merchants are experiencing a persistent issue where transactional and marketing emails fail to send to certain customers, displaying the error “Email address doesn’t exist” despite verified, correct email addresses.
Key Details:
- Emails that fail include order confirmations and marketing messages
- The problem persists even after deleting and re-adding the email address to customer profiles
- Third-party verification tools confirm the email addresses are valid
- At least one case involves a mac.com email domain
Critical Impact:
- With New Customer Accounts enabled, affected customers cannot log in, creating a significant access problem
- Merchants report difficulty reaching Shopify support for assistance
Current Status:
- Shopify support has acknowledged the issue and claims to be working on it
- The problem has persisted for at least 2 months without resolution
- No workaround or fix has been identified yet
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