Another question, is MailChannels paid?
Another question, is MailChannels paid?






https://jeff.invalid/sg/random_string_here). (I'd also stick a random query parameter in there as an extra measure, as your random string POST endpoint will be visible in your CF dashboard, and it also helps if you ever screw up with basic auth implementation.)
abuse, postmaster, and unsubscribe as usernames, which could be a dealbreaker. https://docs.sendgrid.com/for-developers/parsing-email/setting-up-the-inbound-parse-webhook#testingpostmaster@jeff.example for signing up for things like https://senders.yahooinc.com/complaint-feedback-loop/. abuse, postmaster, and unsubscribe . (We've tested all three on our main root domain.)

dig sendgrid.ai.moda MX returns mx.sendgrid.net.3600 seconds set and I have yet to see anyone who sends me stuff more often than 24 hours lol. (But we don't send out a ton of email yet.)
https://jeff.invalid/sg/random_string_hereabuseabusepostmasterpostmasterunsubscribeunsubscribepostmaster@jeff.exampledig sendgrid.ai.moda MXmx.sendgrid.net.3600