Is it possible to block recipients of the form: aaa@bbb@ccc aaa!bbb@ccc aaa%bbb@ccc during the SMTP conversation?
Not all of the domains that we accept can be verified with LDAP, so these messages come in and generally bounce at a later stage. Ideally I'd like to define these in the RAT, but I don't think it is that flexible. Message/Content filters occur too late in the pipeline to reject the email. Any ideas?
Yes, you can do this easily. When you are editing a listener, there is an additional option for SMTP Address Parsing Options.
There is a field labled "Reject these Characters in Usernames." Just add any character that you don't want and they will be rejected if they show up in a RCPT TO command.
Yes, you can do this easily. When you are editing a listener, there is an additional option for SMTP Address Parsing Options. There is a field labled "Reject these Characters in Usernames."
Perfect, that's exactly what I wanted. Thanks.
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