The answer
A timeout can leave delivery uncertain, so careless retries may create duplicate invitations or messages; verify the application's retry and deduplication behavior.
How should email-service credentials be configured during deployment?
Why should email retry behavior be tested during a wedding-app deployment?
More FAQs in How should email-service credentials be configured during deployment?
No. The provider may require a verified sender or domain, and the credential's permissions can further restrict which addresses the application may use.
Confirm the sender, recipient, message content, and acceptance URL, then complete the intended invitation journey without granting access beyond the configured membership policy.
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