On 2021-02-07 17:33, Marek Kozlowski wrote:
:-)
+1
Presumably it's my fault but I cannot find such an option. If so - thank you for directing me to it. I'm wondering if it possible to limit incoming mail with '...@somedomain.tld' specified as a sender address*) to IPs belonging from some CIDR ranges:
sure
- if addresses from the ranges belong to 'somedomain.tld'? - if addresses from the ranges and 'somedomain.tld' A records don;t cover the same sets of hosts?
you should not accept local envelope sender on port 25, its not you :-)
*) For both envelope and internal 'from:' would be perfect; if not - for only one of them.
From: can only be protected with dkim
