Hermes is an antispam SMTP proxy powerfull and highly configurable. Hermes is:
- Multiplatform
- Transparent
- Efficient
- Configurable
- Extension friendly and compatible
Works combining SMTP banner delay, Throttling, Greylisting and DNSBL.
Libspf2 is a library which allows email systems such as Sendmail, Postfix, Exim, Zmailer and MS Exchange to check SPF records and make sure that the email is authorized by the domain name that it is coming from.
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