Ask HN: How do services like Substack and Beehiiv send email?

2 pointsby boeing767about 2 years ago

I'm looking to start a similar service, can I just use a bulk mailing API like Mailgun?<p>Is that how it works?

2 comments

geoahabout 2 years ago

Pretty sure substack uses mailgun. If you dig substack.com for mx and txt records you’ll see that their spf includes mailgun and their mx records point to the same as well.

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starbaseabout 2 years ago

Can you not use sendmail with appropriate DNS/DMARC records flashing the requisite badges? No need to make more work for yourself.

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