Gmail now showing "Message clipped" UI on (some) short emails about email-bugs

[peterc]

The plot thickens. If I send the very same email through Postmark instead of Sendgrid, no message clipped message. The bodies have identical code (almost - Postmark puts a different MIME part separator on and changes the charset on the MIME type for some reason, but these shouldn't affect clipping).

[peterc]

OK I might have resolved it. A slightly odd one this. In the last line of our email we were using a "middle dot" Unicode character in our street address. Removing this character has removed the issue from Gmail. Postmark's change to the character encoding changed how this character was encoded in quoted-printable from =B7 to =C2=B7. This one change appears to resolve the problem.

In short, I think Gmail's clipping can be triggered by specific Unicode characters..(?)

[revelt]

In short, I think Gmail's clipping can be triggered by specific Unicode characters..(?)

yeah, it's been observed #41 (comment) — btw you can use https://detergent.io (from yours truly) to encode any text that's pasted into the HTML template, it also removes invisible characters and fixes English style

[peterc]

Ah thanks @revelt! I did search before but failed to dig into that one. Closing this as it doesn't appear to be an entirely new issue, although it did not exist for this particular email (which is 7+ years old) even two weeks ago.. yet does now. Maybe the range of characters triggering this problem has shfited in some small way or SendGrid is automatically tweaking the email in some new way (since it is not a problem with Postmark).