Problem Description
The sender receives a bounce letter after sending emails to Alibaba Mail users, or Alibaba Mail system returns the following information after sending the letter by it's user:
454 Transient reject by behaviour spam...Cause
Because the frequency or number of emails received/sent exceeds the limitation, resulting in a temporary rejection of the behavior anti-spam stage.
Example:
too frequently sending
454 Transient reject by behaviour spamANTISPAM_BAT[01201311R1468S4530114229, ay29a033002195077]: too frequently sendingcurrently unexpected sending
454 Transient reject by behaviour spam at DATA State(Connection IP address:*)ANTISPAM_BAT[01201311R5167S531, r41g03022]: currently unexpected sending (in reply to DATA command)much too frequently sending
454 Transient reject by behaviour spam at Rcpt State(Connection IP address:*)ANTISPAM_BAT[01201311R1069S5410121220, ay29a033002195081]: much too frequently sendingCONTINUESolutions
Decrease Sending Frequency
Please reduce the frequency and quantity of sending letters at the sending system and standardize the sending behavior, which will automatically lift the restrictions on sending emails. Please refer to the following for details:
If the delivery time exceeds the per-minute or per-hour limit, you must pause the delivery for a period of time and then retry the delivery.
If the daily delivery limit is exceeded, you need to suspend the delivery on the same day and try again 24 hours later.
The Alibaba Mail system has multiple parallel receiving policies, and the details of the specific rules are system secrets and will not be disclosed to the public. If the current emails to be sent is required for special usage scenarios, please contact the technical support for corresponding assistance.
Please refer to the relevant documentation: Bounce Notification: too frequently sending