Spionida, e-mail providers responded:
" Hello.
Check, please, whether the necessary letter falls into the Spam folder.
If there are no letters in Spam, contact the sender with a request to send us
full log of SMTP session (log of the mail server) or full text
an error about the non-delivery of the letter to your address. "
Can I get you a log error in delivering me a letter? Thanks.