我公司想向我们发送电子邮件,但由于错误而被退回
"Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be preventing delivery. Recipient address rejected: Message rejected due to: SPF fail - not authorized."
我在https://mxtoolbox.com中检查了我们的记录和他们的记录,没有发现明显的错误。现在我被困住了。关于还有什么要检查的任何建议?