cannot add PPA for claws-mail
133
How can I fix a 404 Error when using a PPA or updating my package lists?
36332
Can a deb package contain a PPA dependency and install packages from the PPA?
125678
Postfix - Block email from non-existent local addresses
3298
How do I resolve unmet dependencies after adding a PPA?
15183
Elementary OS PPA gives “The repository does not have a Release file.” error
23826
How do I fix a "Unknown configuration key `foreign-architecture' found in your `dpkg' configuration files." error?
82044
Advice installing PSPP on Ubuntu 20.04
139120
Intel Graphis card not updating. Problem with ppa?
24711
Is there a PPA with the latest version of LibreOffice?
76241
"no public key available" while upgrading using update-manager
1856
How do I add the kernel PPA?
62855
sudo add-apt-repository throws an exception
105208
How can I check if a PPA has packages for another Ubuntu version?
144637
How to list all the packages which are installed from PPAs?
64123
How to list packages from a ppa/source in command line?
107786
PPA error while installing Albert application launcher in Ubuntu 18.04
69765
How do I cherry pick packages from a PPA?