other: Outdated links in the documentation #4690

Subject

Something else that requires developers attention

Description

Multiple outdated links have been discovered in the documentation.

1. The documentation page about Rspamd contains a link to a Spamhaus post, but that link is outdated because Spamhaus redesigned their page.

   The link in question is this: https://www.spamhaus.org/faq/section/DNSBL%20Usage#365

   

   I think the best bet is to change it to point to an archived version, like here: https://web.archive.org/web/20190407061432/https://www.spamhaus.org/faq/section/DNSBL%2520Usage#365

2. Again, documentation page about Rspamd, link to documentation about integrating Abusix with Rspamd is outdated:

   

   The updated URL should be https://docs.abusix.com/docs/guardian-mail/mail-server/Rspamd