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Issue DKIM signature failed

Simpleweb

New Pleskian
After upgrade to latest version of onyx i have a problem with dkim signature
I have activated all in plesk and when i send a test email to [email protected]25.com i have this response:

Result: fail (signature doesn't verify)

DNS record(s):
default._domainkey.ordinepsicologiabruzzo.it. 60 IN TXT "v=DKIM1; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnvdzOFBy2iyOeR6h0Fng5UH5AdAHsfjlTM7fJWnw2Ly1A5sWtbpLujXJt/o0S9j7O+TphaJPb1ZrYFxI0PJrs37UqiaLCf1+oZ/IKYIUQSvUhRwTOalo30RtzRRrQpJ13E+BnWxRHM4hwccXFVtVSfvul1xemmADh3RW1w8DDWwIDAQAB"

Public key used for verification: default._domainkey.ordinepsicologiabruzzo.it (1024 bits)

NOTE: DKIM checking has been performed based on the latest DKIM specs
(RFC 4871 or draft-ietf-dkim-base-10) and verification may fail for
older versions. If you are using Port25's PowerMTA, you need to use
version 3.2r11 or later to get a compatible version of DKIM.

Also with the tester of my newsletter app i have this reposnse:

The DKIM signature of your message is:

v=1;
a=rsa-sha256;
c=relaxed/relaxed;
d=ordinepsicologiabruzzo.it;
s=default;
t=1525878972;
bh=GndIVq4FWZcwbz3poIITs9x6hDOlrecq3a/OIomndRc=;
l=9374;
h=To:From:Subject;
b=AXckEY6rvKF5Zn0koTXEyJNlyMH1+yclZeApEveQZZiX6Bvdpod6nA8VnWxwIaIMm2mjnHLBqn6Y6sb1sq0PdwWKwZwAXD7uEuq0AMuHm3HQOTDb+ecAOzwr0ZwkEjqTu8lWO2Dp94QI/kmFATJ81ZXlGGsnuzjQXZRUNUThTr8=

Your public key is:

"v=DKIM1;
p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC5mgnojIQVSxL26/RA8z5NF048PoZWvjcy/uOe1c4cSBeIRMX2IfMR4FqqAUr17EObvuOM6DJXcn5TYHRNGZuq2fl6YYwGM0khA8j4t3sNlDznCYAwJ8nit2bh1P2N7/7NnvBoJHaGw9KyzLBAEa+SEEohPV0lZoKYLYE2P9I2UQIDAQAB;
"
Lenght of key: 1024bit

Your DKIM signature is not valid


I have added the correct entries into DNS zone (as you can see from attachment) but no luck.

Also if i check Check a DKIM Core Key for default selector on ordinepsicologiabruzzo.it all is ok.

What i have to do
 

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