Upgrading and Rotating DKIM Keys
As many of our customers know, email delivery is the core of our business. A big part of ensuring that your emails get to the inbox is email authentication, such as DKIM and SPF. A recent change in Gmail/Google now requires that DKIM keys are at least 1024-bit in length. When Postmark first launched a few years ago, we started with 768-bit keys, which now results in Gmail showing DKIM as “weak” and displaying a “via” tag. Fortunately inbox rates are not affected.
Continue reading • Chris Nagele wrote in Product news
