I run a corporate network that runs exchange 2013. We are having issues with sending emails to a certain domain. Below is the error message I receive:
The following message to <Rosemary.Joe@towerinsurance.com.fj> was undeliverable.
The reason for the problem:
5.3.0 - Other mail system problem 550-'5.7.1 Message rejected (SPF)
I would appreciate any assistance provided.