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Options DMARC record

;; [v=DMARC1] ⇒ DMARC version

;; [p=***] : action policy when authentication fails
;; - [none] ⇒ do nothing
;; - [quarantine] ⇒ quarantined in junk mail folder
;; - [reject] ⇒ reject email

;; [rua=mailto:***] : the address to which aggregate reports will be sent
;; * if not ...

basic description of SPF.

the TXT record itself can have multiple lines,
;; but in SPF settings, only one TXT record can be set for one domain name

;; [v=spf1] ⇒ it means SPF version

;; [+ip4] ⇒ specify IPv4 addresses
;; [+ip6] ⇒ specify IPv6 addresses

;; [+] ⇒ verify your domain's mail server ...

how to setup SPF and DMARC in bind/named

Configure a DMARC (Domain-based Message Authentication, Reporting, and Conformance) record to indicate that your mail server is protected by SPF (Sender Policy Framework)
These are attempts to counter spam, so it is best to set it for you domain.

in the ...

The newer version of thunderbird are more strict on certificates, specially on self-signed certificates.
If you have a private imap-server that you maintain yourself you probably use this.

You can find a tutorial on this site:
https://softwareprocess.es/homepage/posts/dovecot-thunderbird-ssl-alert ...

Sounds like the client is not accepting the certificate.
did you change the certificate of the server recently ?

I think you need to accept the new certificate on the client software.
In K-9 it is in Settings > accounts > Fetching mail > Incoming Server > Next of Advanced
and accept the new ...

The problem is comparing different encode character-sets.

You can see the character-sets with:
SHOW VARIABLES LIKE 'char%';
SHOW CREATE TABLE table_name;

FYI: utf8mb4 is NOT a character encoding, utf8mb4 is just MySQL's nickname for utf8. what MySQL calls utf8 is actually a 3-byte subset of the ...

found a solution.
Apparently something went wrong or was incomplete with the latest update
to mysql Ver 15.1 Distrib 10.11.6-MariaDB

running the upgrade command solved a lot of problems:

Hello

I get the following error in the logs of mariadb/mysql
mariadbd[721379]: 2024-09-22 17:48:04 1693 [ERROR] Incorrect definition of table mysql.column_stats: expected column 'hist_type' at position 9 to have type e…UBLE_PREC_HB').
mariadbd[721379]: 2024-09-22 17:48:04 1693 [ERROR] Incorrect ...

With the lastest version of opera (version 125.0.6422.143) (and Chromium) the last workaround doesn't work anymore.
It crashes the page on youtube and doesn't play the videos in rumble.com.

You can download libffmpeg.so from :
https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/
and copy ...

I got the message in my logs /var/log/mysql/error.log
Plugin mysql_native_password reported: ''mysql_native_password' is deprecated and will be removed in a future release. Please use caching_sha2_password instead'

So how to fix this ?
On MySQL 8.0.34 through 8.3, you get this warning.
After ...