For the emails that have been sent, the receiving system determines whether there are spamming possibilities after receiving them, depending on the anti-spam policy rules adopted by the receiving mailbox server. For such situations, it cannot be completely solved from the sending end. In the event of such a situation, please inform the recipient of the email service provider in a timely manner, and provide corresponding judgments on the cause and solution of the spam in combination with its system anti-spam inspection policy.
When using corporate mailboxes on a daily basis, it is recommended to send as many business-related correspondence as possible, and reduce promotion and junk mail delivery, so as to better avoid sent mails from being judged as junk.