Resolved Dkim hotmail failed but gmail etc past

[peterbinsje]

When i send mails to Hotmail the first DKIM tells me :

Authentication-Results: spf=pass (sender IP is XXX.XXX.XXX.XX)
smtp.mailfrom=domain.nl; outlook.com; dkim=fail (body hash did not
verify) header.d=domain.nl;outlook.com; dmarc=pass action=none
header.from=domain.nl;
Received-SPF: Pass (protection.outlook.com: domain of domain.nl

the later in de mail header :

CMM-Authentication-Results: hotmail.com; spf=pass (sender IP is
xxx.xxx.xxx.xxx; identity alignment result is pass and alignment mode is
relaxed) smtp.mailfrom=info@domain.nl; dkim=pass (identity alignment
result is pass and alignment mode is relaxed) header.d=domain.nl;
x-hmca=pass header.id=info@domain.nl

I have a standard plesk installation with centos 7. Gmail's tells me that every thing is well. Also de dmarc repports.

what am I doing wrong ?

 

[peterbinsje]

the problem was that hotmail convert the € difrent then phpmailer does. So the dkim body check was false in hotmail. Strange is that gmail has no problem.