Zoho Mail / Zoho Writer Email merge

Zoho Mail / Zoho Writer Email merge

I notice that in my email merge,  email aliases (I have one) appear together with my main email account for me to choose which account to be used to send mails.

Group email account alias me (and a few others) appears in my Zoho Mail for me to choose, however, these group email account alias y do not appear in Zoho writer. Could this be an issue to either Zoho Mail or Zoho Writer? 

Appreciate for input...