In versions previous to YAM 2.5+, email messages were displayed with the soft style markers in a mail. However, this cause severe trouble in case a style marker was incorrectly recognized so that text was mixed up. Especially for formatted text like stylished ASCII-art signatures or documentations this ended up in a completly mixed up display of the email. In addition, other mainstream email programs also didn't strip the soft-style markers for the very same reasons.

Example:
Considering that an author of an email wrote a short ASCII-art documentation in an email to e.g. explain a bit mask that he used and where he wanted to highlight the first bit as important in bold:

0      1 0 1 1
|      | | | |
|      | | | bit5
*bit1* | | bit4
_      | bit3
_      bit2

Due to the used '*' bold-style characters this may have ended up looking like the following in YAM < 2.5 because the '*' chars were completly replaced by the bold style only:

0      1 0 1 1
|      | | | |
|      | | | bit5
bit1 | | bit4
_      | bit3
_      bit2

As can be seen in that example, the ASCII-art here is completly mixed up due to the removed "*" bold-style characters.

However, now with YAM 2.5+ these kind of problems were fixed by keeping those soft-style characters in the showed mail text so that the above example now perfectly ends up being display correctly with the bold style and its markers:

0      1 0 1 1
|      | | | |
|      | | | bit5
*bit1* | | bit4
_      | bit3
_      bit2

In addition to that fix, it is now more easily possible to spot which character can be used to start writing a word in bold style rather than having to always use the corresponding toolbar button.