Just wanted to make sure that I wasn't being overly cynical in disregarding a series of invited to present at this conference (http://www.bitcongress.com/analytix2017/default.asp)
The email to me seems spammy but maybe its a language barrier?
"
Dear Dr. X,
I apologize for the inconvenience if the letter disturbed you more than once. I'm writing to follow-up my last invitation as below, would you please give me a tentative reply? Thank you.
We are proud to launch the 5th Annual Conference of AnalytiX-2017 (AnalytiX-2017), will take place March 22-24, 2017, Fukuoka, Japan, with a theme “Emerging Trends in Analytical Science”. On behalf of the organizing committee, it is an honor to welcome you to attend this meeting and present a speech on NAME OF PAPER I PUBLISHED... in Track 4: Crystallography at AnalytiX-2017."
Thoughts? I blow off things like this all the time as BS but normally they aren't so persistent.