To verify the authenticity of the sender, Polyplastics-Evonik uses technologies such as SPF, DKIM, and DMARC for @polyplastics-evonik.com. SPF and DKIM are used for @pp-evonik.com. If these technologies are used, users can verify the authenticity of the sender.
Polyplastics-Evonik recommends the following measures:
Do not deliver emails to users who fail SPF checks.
Attach warnings to all external emails.
Add Polyplastics-Evonik's emails to the exclusion list after passing DMARC checks.
Use the latest email security solutions.
Check the reputation and elapsed time since registration of the email domain used.
