SG UTM

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SMTP - check sender mail domain

When accepting mail messages, the sender mail addresses, the domain part, are not checked for existence. No queries are made as to whether the domain holds an MX record, for example. This should apply to both address fields, envelope and header.
In this way, fake addresses of stations could be avoided.

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Micha.K shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →

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