Postmark: URL shorteners hurt Gmail deliverability… quite a bit

Postmark just shared a new brilliant article:

We’ve noticed a trend where some customers see sudden ISP Blocks and soft bounces from Google only for specific email messages. As we do for any reports of an issue like this, we investigated the messages to help spot a root cause. 🕵️‍♀️️ Gmail’s bounce messages hint at issues with the content and links While Gmail doesn’t share all its secrets around why they might decide to deliver or block a message, their bounce notifications can provide helpful hints to help you track down the issue. In this case, looking at the event details for a message that couldn’t get delivered shows a ISP block with a bounce code that says “Our system has detected that this message is suspicious due to the nature of the content and/or the links within.” Investigating issues in Postmark: If your email was blocked, we show you the bounce code we’ve received from the…

Read the original here: URL shorteners hurt Gmail deliverability… quite a bit

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