Mac Mail export message as PDF - cuts off right side - using Sequoia 15.0.1 on Macbook Pro 2023
I was having this problem and found a closed conversation which didn't have an answer.
The original person asked why their email which was exported as a pdf had the right side of the message cut off. This was also happening to me. I found that if I go to the top of the open message, there are two "A"s for font size. If I select the smaller a to reduce the font size of the message and then export as pdf, the entire message will save without cutting off the right side of the message.
MacBook Pro (M2 Pro, 2023)