On 9/8/2026 23:00, Ralf Hildebrandt via Postfix-users wrote:
...
10 [57.77.85.136.bc.googleusercontent.com]
10 [178.233.148.34.bc.googleusercontent.com]
11 [241.135.114.136.bc.googleusercontent.com]
13 [213.102.87.34.bc.googleusercontent.com]
...
My solution -- In main.cf:
smtpd_recipient_restrictions =
...
check_client_access pcre:/etc/postfix/check_client_pcre,
...
And in check_client_pcre
...
/googleusercontent\.com$/ REJECT
/linodeusercontent\.com$/ REJECT
...
I used to get a lot of hits from linodeusercontent.com as well, but that
seems to have tapered off in the last year.
--
Jim Garrison
[email protected]
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