If your email was rejected by our servers please check that you have a valid SPF record in place (Sender Policy Framework). All incoming email must have a valid SPF record. Please contact your system administrator.


For more information please review the following links:


https://mxtoolbox.com/dmarc/spf/setup/how-to-setup-or-modify-spf

https://support.google.com/a/answer/33786?hl=en&ref_topic=10685331&fl=1

https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/how-office-365-uses-spf-to-prevent-spoofing?view=o365-worldwide