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Cisco Bug: CSCvv57398 - [ENH] Rate Limit on the basis on Sender Domain

Last Modified

Sep 02, 2020

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases

12.5.2 13.5.2-020

Description (partial)

Symptom:
There are tools available for sending campaign mails, where each sender id is unique and only domain is common.

Conditions:
Using Rate limit for Sending IPs/hosts, there are certain challenges as there are many cloud operators who share the same set of IPs for multiple tenants like O365, AWS etc.. So making a unique sender group for these host can also block some legitimate senders coming from same cloud.
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