Allow link tracking on URLs longer than 1000 characters
Please add support for click tracking on URLs longer than 1000 characters. As far as I can see this limitation on link-rewriting is not documented. Our SSO solution generates links in the 1000 - 1300 char range that contain a base64 encoded JWT. All browsers support at least 2048 characters so it would be obvious to allow as least as many characters for the rewrites.
/David
Jérémie Albert
shared this idea
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Tim Vasil commented
Per [1], it appears that Mailgun has an internal limit of 1000 characters per URL currently. We suggest 2083 as a bare minimum as set by Internet Explorer [2]; modern browsers have much higher limits.
Our URLs can include some "view state" that's helpful to include as context. These can get quite long. Without Mailgun URL rewriting, our customers are seeing inconsistent links (some with the tracking domain, some without), and that's occasionally preventing them from clicking on links due to Outlook SafeLinks protection.