Re: Filtering HELO / EHLO names before MAIL FROM

On 1/4/25 14:03, Claus Aßmann wrote:

Yes, esp. 421.
Maybe that's the best for your problem?

I'll have to evaluate the temp fail.

But any command other than QUIT (and a few others which do not start a transaction) will be rejected, correct?

The command(s) that I tested do end up getting a 5xy error after causing the reject.
I would have hoped there was a 5xy series error that could be returned when sending the SMFIS_REJECT (?from memory?) in response to the helo callback.
I need to reference some RFCs to see if such is even allowed.
--
Grant. . . .