Subject: Message Delivery Delay
From: "Delivery Subsystem" <[email-masked]>
To: <[email-masked]>
Date: Mon, 15 Jan 2024 17:27:51 +0330

MailEnable: Message delivery has been delayed.

Message is waiting at dnswebhost.com for delivery to mail.coraltrading-cn.com.

The message will be retried for another 28 hours.

Reason: Mail server for coraltrading-cn.com could not accept your email at this time. MailEnable will keep trying to deliver this message and will notify you of any progress.

The remote mail server returned the error:
451 Greylisted, please try again in 240 seconds

Remote Response: 451 Greylisted, please try again in 240 seconds

Message headers follow:

To: <[email-masked]>
From: <[email-masked]>
Date: Mon, 15 Jan 2024 15:47:28 +0330