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In console:
nano etc/postfix/main.cf
Add this line:
tls_ssl_options = NO_RENEGOTIATION
1
Notice the spec also includes comments:
Strings of characters enclosed in parentheses are considered comments
so long as they do not appear within a "quoted-string", as defined in
section 3.2.4. Comments may nest.
There are several places in this specification where comments and FWS
may be freely inserted. To accommodate that syntax, an ...
1
it is as simple as postconf -e "inet_protocols = ipv4"
but nothing prevent you from fixing your dns/SPF over ipv6 as it is said in comment. regards.
1
Lately I have had exactly the same on my uptodate Ubuntu box. I am sure I had smtpd_sasl_type = dovecot and smtpd_sasl_path = private/auth set.
I have the same question as user102362 has: when I read this in my config:
# Note that denying root logins is hardcoded to dovecot binary and can't
# be done even if first_valid_uid is set to 0.
I assume that its ...
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