I can confirm that this is still an issue with a new deployment as of today using Sendgrid API.
Maybe @tneville or @yehuda have some input.
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This reply was modified 4 years, 11 months ago by thankyou2021.
Good morning,
Firstly, thank you for producing such a remarkable tool.I wanted to give this thread a bump to also say I’ve experienced the same issue while using the SendGrid API & Post SMTP. Mail-Tester has reported along the same lines of
Message-Id is not valid, according to RFC 2822
And gmail reported the same
Message-ID: <[email protected]>
X-Google-Original-Message-ID: [email protected]
