Managed Security Service Provider (MSSP)
Managed Security Service Provider (MSSP)
- April 23, 2021
- Posted by: Nicola Selenu

A company that offers cybersecurity services to customers. MSSPs offer cybersecurity management that can include email authentication, DMARC, firewalls and virtual private network (VPN) administration.
Author:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
Managed Security Service Provider (MSSP)
A company that offers cybersecurity services to customers. MSSPs offer cybersecurity management that can include email authentication, DMARC, firewalls and virtual private network (VPN) administration.
« Back to Glossary IndexAuthor:Nicola Selenu
Email Service Providers Handbook
The most comprehensive “Handbook of Email Service Providers“!
SPAMASSASSIN RULES
All SpamAssassin rules in one place, EXPLAINED!
SMTP COMMANDS
& REPLY CODES
All SMTP/ESMTP commands and reply codes in one place, EXPLAINED!
Free DNS Tool
Check the DNS records of your domain with our free DNS tool.
Deliverability Glossary
The most comprehensive Email Deliverability and Marketing Glossary!
« Back to Glossary Index