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you should ask your ip provider to set a proper reverse lookup for you. If I would get a lot of spam from upcloud.host ips, I would also consider blocking upcloud.host reverse dns lookups. If it is your ip, it is an easy request to have it changed. -----Original Message----- From: Sami Ketola [mailto:sami at ketola.io] Sent: Monday, October 26, 2020 11:22 AM To: lists Cc: Arjen de Korte; Dovecot Mailing...

Actually the reverse pointer doesn't have to match. In fact this is impossible if you are setting up virtual accounts on one server for different domains. You just need to have a reverse pointer. Most email servers look to seen if the reverse pointer has a "dyn" in it and blocks those. ? Original Message ? From: build+dovecot at de-korte.org Sent: October 26, 2020 2:02 AM

...it and blocks those. > Also your own email server is not behaving nicely: <lists at lazygranch.com <mailto:lists at lazygranch.com>>: host lazygranch.com <http://lazygranch.com/>[198.199.119.111] said: 500 5.7.1 <83-136-254-93.uk <http://83-136-254-93.uk/>-lon1.upcloud.host[83.136.254.93]>: Client host rejected: eat a bag of dicks (in reply to RCPT TO command) and for that reason I have blacklisted you from any help requests. You may do the same whatever you are telling me to do. Sami -------------- next part -------------- An HTML attachment was scrubbe...

Hello,I have 6 Ubuntu 18.04 machines in a Tinc (1.35) network, where 3 are in Spain and 3 in UK.One machine in each country is running Tinc, and as both ends are behind NAT, they both connect outward to an Upcloud VM. The 4 non-tinc machines can Ping and SSH each other without issue, and so from that point of view, the Tinc VPN is working fine.However, the 2 tinc machines can only ping and ssh each other across the vpn - they cannot reach any of the other 4 machines.- they can of course ping and ssh the 2 ma...

...Product: nftables Version: unspecified Hardware: x86_64 OS: Debian GNU/Linux Status: NEW Severity: normal Priority: P5 Component: kernel Assignee: pablo at netfilter.org Reporter: anton.aksola at upcloud.com OS: Debian GNU/Linux 10 (Buster) Kernel: 4.19.0-8-amd64 This works every time: # nft -f - << EOF flush ruleset add table ip filter add chain ip filter forward { type filter hook forward priority 0; policy accept; } add map ip filter foo { type ifname : verdict; } add rule ip filter forw...