On 2021-06-19 16:21, Kevin N. wrote: > Any thoughts? ARC-Authentication-Results: i=1; talvi.dovecot.org; dkim=pass header.d=notscheduled.eu header.s=vdsce95c9 header.b=lTA5iJYj; spf=pass (talvi.dovecot.org: domain of kevin at notscheduled.eu designates 185.125.111.71 as permitted sender) smtp.mailfrom=kevin at notscheduled.eu what is the problem for yahoo ?