Am Tue, 3 Sep 2019 09:33:52 -0400 Hi Viktor > You can use "check_sender_access" in combination with a PCRE table: > > /[^[:ascii:]]/ REJECT 5.1.7 Malformed sender address
Thank you, that solves the issue of Postfix accepting such emails but dovecot then rejecting them causing 'double bounces'. > BUT, you MUST be sure to remove that rule if/when you enable SMTPUTF8. Yes sure, but first dovecot must also support SMTPUTF8 Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________
