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Feature announcement: Custom metadata for your emails

We know that sometimes you need to keep track of each email not just as it flows through Postmark, but outside of it as well. We also know that you can’t always rely only on the Postmark-generated Message ID to accomplish this — you need a way to set your own unique IDs on a per-message basis. So we've added an option for you to specify custom metadata for individual emails.

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How to find and fix Gmail reputation-based bounces in 4 steps

We’ve all been there—a message you sent your users or customers ends up in the depths of a Gmail spam folder, and it’s up to these folks to “report as NOT spam” and move it to the inbox. If they’re super nice, they email you back to let you know about it.

But what do you do if your message is rejected by Gmail entirely, actually blocked on the first connection to Gmail’s servers, before it even reaches anyone (including the spam folder)?

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New Postmark changelog

For those of you who want to stay on the cutting edge of Postmark improvements, we’ve launched a brand new changelog where we’ll document every update so you’re always up on the latest news.

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How to curb failed payment issues with reliable email delivery

Transactional emails are dead in the water without world-class email deliverability. And failed outreach can quickly wreak havoc on recurring revenue. Dunning emails, in particular, are dangerous to leave in the hands of a shaky email delivery service. If you cannot rely on their delivery, you could be losing customers and revenue right under your nose.

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