Same thing happening in my case also. I think the admin has to take care of this aspect. I find no special reasons for it.
email only contains the word ‘post name’
I have not seen this case. I just received an email when someone answers my posts only
I could not understand the main purpose of this question to ask here. I never notice such problem in my case.
There will be any technical issue in the mail server of OC. So, provide the detailed error info with screen shots to @admin or OC’s staff.
You are right the email subject is not clear of the oc mail. It should be improved by the admin.
I have never encountered this situation ever so I do not know how it wishes you please give me some information in the image to validate it