confirmation e-mail to sender does not work

Hello
I created a form which nearly works perfect.
I would like to send the content of the form also to the sender. I implemented within e-Mail configuration advanced under "dynamic to" the corresponding textfield.
This did not work.
I added also the debugger and it shows me that both e-mails are listed and successfully sent.

Array
(
    [8] => Array
        (
            [Email] => Array
                (
                    [0] => An email with the details below was sent successfully:
                    [1] => To:xy@yz.com, ab@gmail.ch
                    [2] => Subject:Tripxglobe-Rundreise
                    [3] => From name:Tripxglobe-_Rundreiseformular
                    [4] => From email:info@tripxglobe.com
                    [5] => CC:
                    [6] => BCC:
                    [7] => Reply name:
                    [8] => Reply email:
                    [9] => Attachments:
                    [10] => Array
                        (
                        )

One e-mail is sent to gmail, which did not work (also not within spam)
What could be the problem?
Thank you
Best regards

Peter

Hi Peter,

Does the From Email address match the site domain? If not, that can cause emails to be dropped as possible spam.

Also you talk about two emails but there is only one in the DeBugger output you posted. Is there another one? Or is it that one of the two addressees is getting the email and the other isn't?

Bob

Hi Bob
Thank you. The from E-Mail adresses does match, however I'm configuring the site from a subdomain. Does this have an influence, as in the e-mail only the main domain is written?
in the debugger there are two adresses: To:xy @[at] yz [dot] com, ab @[at] gmail [dot] ch (I just changed the names)
Interestingly only the gmail adress does not work, the other one is working, even from the dynamic part...

Thank you
Best regards

Peter

Hi Peter,

Make sure that there is just a comma between the two addresses - and no spaces. Otherwise they are probably being sent and GMail is dumping that one for some reason. The From address should probably match the primary domain, not the subdomain. We don know that GMail checks that the From address matches the sending domain and dumps emails if they don't match as being probable relayed spam.

Bob