> On 2. 7. 2026., at 23:23, Danjel Jungersen via Postfix-users > <[email protected]> wrote: > > > >> On 2 July 2026 22:55:34 CEST, John Levine <[email protected]> wrote: >> It appears that Danjel Jungersen via Postfix-users <[email protected]> >> said: >>> -=-=-=-=-=- >>> -=-=-=-=-=- >>> >>> Hi. >>> >>> We have strange letters here. (æøåÆØÅ). >> >> That's an Internationalized Domain Name (IDN), in the Unicode U-label form. >> THe encoded A-label equivalent which you can look up in the DNS is >> xn--vestskovslbet-knb.dk >> >>> 3E0D010E0084: to=<stefan@vestskovsløbet.dk>, >>> relay=mx.simply.com[94.231.106.20]:25, delay=0.88, >>> delays=0.46/0.1/0.32/0, dsn=5.6.7, status=bounced (SMTPUTF8 is required, >>> but was not offered by host mx.simply.com[94.231.106.20]) >> >> His correspondent's mail is misconfigured. If a mail server is going to >> handle mail with IDN addresses, it needs to enable the SMTPUTF8 feature >> which his provider mx.simply.com has not done. That is their mistake, >> they have to fix it. >> >> A possible workaround is to send mail to the A-label version of the >> address, [email protected] which would not need SMTPUTF8. >> I poked at the server and it accepted that address. > > > Is there a reason why this is not attempted automatically? > > The receiver claims that he receives mail from other people using the IDN > version. > > And thank you for your time! > > :-) > Danjel >> >> R's, >> John > _______________________________________________ > Postfix-users mailing list -- [email protected] > To unsubscribe send an email to [email protected]
Sometimes MUA can do that automatically, f.e. Apple Mail convert IDN to A-label when SMTP host does NOT announce SMTPUTF8. For that to work you have to disable SMTPUTF8 in Postfix. _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
