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mudge

It is 2023 and we did the unthinkable: spun up our own mail server for sending transactional mail.

Some tips: warming up an IP address is critical (see sendgrid.com/resource/email-gu) and expect to be greylisted at first, especially by mail providers at registrars and web hosts so ensure you have decent retries configured.

Watch your logs for messages telling you to back off (e.g. Google rate limited us on our second day so we reduced the volume of mail until we had a little more reputation).

SendGridSendGrid's Email Guide for IP Warm Up - SendGridSuccessful email deliverability can seem like a tricky task–and with so many factors affecting your sender reputation such as content quality and email list health, getting your email to the inbox can feel harder than ever. And if you are sending email on a brand new IP address, this variable can be one of the […]
robotreader

@mudge What about if you're an individual with a low volume of mail? The 30-day retention period especially is very concerning.

Jun 21, 2023, 05:11 AM·Public
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mudge

@sdubinsky ah yeah, the rolling 30 day reputation window will make it difficult for a very low volume of mail. The big providers would probably be fine but the smaller ones who greylist by default would be a pain.

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