Cisco ESA and SMA virtual appliance Sizing tool

[deepakjangale1]

Dear Team,

Please help me to sizing Cisco ESA and SMA virtual appliance where Customer want to deploy Cisco ESA Virtual appliance for System generated mails/alerts of various alerts as out going mial th other domain.

what parameter shold I need to consider while sizing ciso ESa and SMA?

[balaji.bandi]

here is the sizing guide based on the users : (table 4 and 5)

https://www.cisco.com/c/en/us/products/collateral/security/email-security-appliance/data-sheet-c78-729751.html

[marc.luescherFRE]

Let me ask you a few questions before giving you some ideas/hints and indications.

The Cisco sizing guideline does unfortunately no longer do a good job in asking all the right questions.

They key indicators we would need to know are :

a) number of users and domains

b) numbers of inbound and outbound messages per day

In terms of services we would need to know :

c) Antivirus yes/no

d) AntiSpam yes/no

e) AMP - Advanced Malware Protection yes/no

f) MAR - Message Auto Remediation yes/no

g) SPF/DKIM/DMARC enforcement yes/no

h) external ThreatFeeds yes/no

i) URL rewrite to proxy yes/no

j) SIEM upload yes/no

k) customer mail rules an filters, how many ?

to narrow the platform choices some other questions :

l) Is HA High Availability of the email security gateways a requirement ?

m) Do you require hardware appliances or is virtual also an option ?

n) Do you want a hosted service or host inhouse ?

o) What is SLA of the service ?

Once I get your answers I will to guide into the right direction.

-Marc