On Wed, Jun 17, 2020 at 02:37:23PM +0200, Patrick Proniewski wrote: > For some time now I notice that some messages, either originating from > Internet or from internal servers are bounced when they arrive on the last > hop: Exchange. > Jun 17 12:34:20 postfix-mailgw/smtp[77347]: 57F56EB256: > to=<login@exchg.domain>, orig_to=<userpart@domain>, > relay=Exchange-VIP[Exchange-VIP]:25, delay=0.01, delays=0.01/0/0/0, > dsn=5.6.7, status=bounced (SMTPUTF8 is required, but was not offered by host > Exchange-VIP[Exchange-VIP])
You have the two options to - make Exchange support SMTPUTF8 or - disable SMTPUTF8 in Postfix. Set "smtputf8_enable = no". Bastian -- "Get back to your stations!" "We're beaming down to the planet, sir." -- Kirk and Mr. Leslie, "This Side of Paradise", stardate 3417.3