I sent an email from my t-online.de account to gmail. Gmail shows SPF pass by best guessing:
Received-SPF: pass (google.com: best guess record for domain of x...@t-online.de designates 194.25.134.18 as permitted sender) client-ip=194.25.134.18; And t-online.de has no SPF setup for which you can check from their domain. So what's the best guess record by google? Thanks in advance. Piper