websit url: www.ehbo-de-kwakel.com

since a while the contact form doesn't send emails any more.
it worked before but now it stopt working.

The mailaddress used in the form: *** does work with  webmail, mail apps like outlook or apple mail but when you fill-in the form and press on send then it tell shows that the mail looks like to be send but......  de reciever (online sender) doesn't receive a confirmation and the sender (form receiver) doesn't receive the mail too.

enclosed a screenshot of the settings of the contact form

Please, can you help me while we are very depending on these forms....

Thanks in advance

Richard