On 28 Apr 2021, at 9:22, SysAdmin EM via Exim-users wrote:
Could you tell me how to solve the problem? or what documentation to read?
You need to fix whatever is generating the mail so that it stops sending mail with such long lines. The most reliable way to do that is simply to make it use Base64 or Quoted-Printable encoding rather than allowing it to attempt to send raw arbitrary binary data. If the sender is not under your control or you cannot configure it to use a particular encoding, you may be able to get Exim to sign al it to do so by excluding the sending host from the chunking_advertise_hosts list. To exclude all senders, just add 'chunking_advertise_hosts=""' to your exim.conf file. You may also want to consider 'smtputf8_advertise_hosts=""'. Both of those SMTP extensions have interoperability problems and if your MTA doesn't advertise support, most senders will perform the necessary encoding of messages into a traditional format.
-- Bill Cole [email protected] or [email protected] (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
