Hi,

I have a Postfix set up to relay the messages to an Exchange server.

It declines the mails with

ntern_mail.someurl.de,08D7265A6F30DBE4,12,10.32.68.13:2525,10.32.66.152:49726,*,Tarpit for '0.00:00:05' due to '550 5.7.61 SMTP; Anonymous client does not have permissions to send as this sender',

It works manually with telnet mail.someurl.de.

I suspect it is because Postfix send in the Envelope address for some reason the SIZE=423 with it

MAIL FROM:<tko...@someurl.de> SIZE=434,

How can I disable the sending of the SIZE parameter?

Greetings
Tobias

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