How can I send emails from multiple relay

[calport]

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Cloud email Provider per Virtual Server?

There are (at least) two other ways to accomplish what you wish, @rogeriobrito: sender dependant relays in postfix will let you use different SMTP servers for different domains and in extreme situations, different email addresses, should such granular configuration ever be required. mail rate limits of Virtualmin let you define an upper limit for messages that can be sent out per hour / per day for every domain / virtual server and this protects your server and IP address from excessive ab…