Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Please tell me what email system you are using - Outlook, Eudora, or perhaps webmail in a web browser - and also whether you have a GMail address or an address from some other email provider.
Yes, I'm still here. I composed an answer along the wrong lines (to be frank) then realized it was wrong and edited it before posting... and took so long I lost the entire set of advices.
So I'm just posting this while re-composing my advice to you... I will post again in a little while.
Is the non-Spam email you want to not go into Spam folder, identifiable in any way?
Try going into GMail's
Settings (the little gear icon among the cluster of functions/icons at upper right in your GMail window)
then go to the
Filters and Blocked Addresses
section, then go to the lower half, labeled
The following email addresses are Blocked [etc.]
and look for your Thai frequent-correspondent's email address there. And select that address, if found there, and then when that Thai correspondent's email address is selected, click on
Unblock Selected Addresses
and see if that frees up the system to properly sort them into Inbox again.
(Also make sure the Thai correspondent's email, or emails, is not listed twice, and remove all instances if so.)
Let me know how that goes, by and by or at length, please.
Good. Try it. (No need to respond immediately, thanks.)
Do you have a copy of (or, means of accessing) GMail anywhere, that is not webmail, but is by way of Outlook or Eudora or other email program?
I was wondering if there was some other copy or configuration of your GMail or GMail access, that might have different rules in force than the web-mail accessed GMail.
Apple Mail would be one of those, I think, if I recollect correctly. Check for any Spam rules or filtering rules in Apple Mail. There might be one current there that is overriding your GMail spam filter, perhaps.