Which kanji to use for saying ありがとうございます in emails?


When sending emails, I've noticed that Japanese colleagues use all sorts of
kanji/kana combinations for the simple phrases ありがとうございました and よろしくおねがいいたします.

For example:

  1. ありがとうございました
  2. 有難うございました
  3. 有難う御座いました
  4. ありがとう御座いました

and

  1. 宜しくお願いいたします
  2. よろしくお願いいたします
  3. よろしくお願い致します

Are there hidden nuances to using more or fewer kanji? Do you sound like a try
hard if you use all kanji, or do you sound more polite?




Amongst all the business teachers I have studied with (and then worked with),
the rules to remember were:

**-The auxiliary verb should be written in hiragana:**

お願い致します should be お願いいたします

宜しくお願いいたします is correct as well as よろしくお願いいたします

**-Thank you should be written in hiragana:**

ありがとうございました

-It's ok to use all kanji in literary work.




Amongst all the business teachers I have studied with (and then worked with),
the rules to remember were:

**-The auxiliary verb should be written in hiragana:**

お願い致します should be お願いいたします

宜しくお願いいたします is correct as well as よろしくお願いいたします

**-Thank you should be written in hiragana:**

ありがとうございました

-It's ok to use all kanji in literary work.

