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Have looked around the Internet and at ServerFault the similar question has no solution:

Remove Exim version number

Neither received_header_text in options config or smtp_banner is working. Seems a receiver detect Exim version in another way and don't care about my header that I specifying.

Any ideas to change information in Received header for free mailbox providers?

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To hide the SMTP version/banner follow the steps below

Open the file /etc/exim.conf and find for smtp_banner.

The line would look like

smtp_banner = "${primary_hostname} ESMTP Exim ${version_number} \
Remove the "Exim ${version_number}" from the line. The modified line would look like

smtp_banner = "${primary_hostname} ESMTP \

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  • As I said in a topic - it does not work.
    – Vladmir
    Sep 6, 2019 at 10:38

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