PHP form processor scrip is instable...

[Bluesman]

I am using the PHP form processor script together with reCAPTCHA 3 for a client. He gets complaints from some of his customers that when they send the form it generates the "Error page"? No error message. He get contacted by his social accounts. About 30% of feedback gets this message. I have tried to check what can generate this error and the only thing they have in common is that they use free email accounts like; gmail, hotmail, yahoo...
Does anyone have a clue?

Addition:
The formpage:
https://www.klipparservice.se/kontakta_oss.php

[Pablo]

This has nothing to do with the script. The script does not care which email address you use. So, this is most likely a restriction of the web host.

See also the form FAQ:
http://www.wysiwygwebbuilder.com/forum/ ... 10&t=32967

[Bluesman]

This has nothing to do with the script. The script does not care which email address you use. So, this is most likely a restriction of the web host.

See also the form FAQ:
http://www.wysiwygwebbuilder.com/forum/ ... 10&t=32967

Hi Pablo... tnx for the clarification I have also contacted the web host... waiting for answer...