I usually add a minify step to my sends for this reason.

In my experience one of the biggest causes of clipping is styled links with lots of tracking, oddly enough.

can you elaborate?

Gmail will clip emails if they’re larger than (I think) 104kb.

Using frameworks like mjml can add a lot of arbitrary markup that’ll rapidly increase the size of your email.

the mjml components unpack to a very large number of html tags. so depending on how you structure the doc it can exceed the gmail doc size with a surprisingly small amount of content