fix ipv6 smtp problem #27

Merged
ammaratef45 merged 2 commits from fix_smtp into main 2026-08-28 08:54:00 +00:00
Owner
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compose.yml Outdated
@@ -8,2 +8,4 @@
- proxy
- internal
sysctls:
- net.ipv6.conf.all.disable_ipv6=${DISABLE_IPV6:-1}
Owner

does this mean ipv6 is disabled by default?

does this mean ipv6 is disabled by default?
Owner
ah yes it does https://docs.kernel.org/networking/ip-sysctl.html
ammaratef45 marked this conversation as resolved
Owner

Thanks a lot @moritz !
The change looks solid to me, before approving and merging though, can you explain the problem we are solving here? was VW using an ipv6 address for smtp submission and your system/network didn't support that or am I misunderstanding?

Thanks a lot @moritz ! The change looks solid to me, before approving and merging though, can you explain the problem we are solving here? was VW using an ipv6 address for smtp submission and your system/network didn't support that or am I misunderstanding?
moritz added 2 commits 2026-08-28 08:45:00 +00:00
add release note
continuous-integration/drone/push Build is failing
1309c81d32
moritz force-pushed fix_smtp from 3d6539c45a to 1309c81d32 2026-08-28 08:45:00 +00:00 Compare
Author
Owner

Yes that was the issue. Because of a change in 1.36.0, vaultwarden uses ipv6 for smtp connections per default. And as docker don't support ipv6 per default, it broke our smtp configuration. Is it still working for you? Do you have some special configuration so docker supports IPv6?

Yes that was the issue. Because of a change in 1.36.0, vaultwarden uses ipv6 for smtp connections per default. And as docker don't support ipv6 per default, it broke our smtp configuration. Is it still working for you? Do you have some special configuration so docker supports IPv6?
Owner

it is still working for me but that's probably because my email server doesn't have an ipv6 address (it's a mailu recipe hosted on the same swarm box)

it is still working for me but that's probably because my email server doesn't have an ipv6 address (it's a mailu recipe hosted on the same swarm box)
ammaratef45 merged commit 1309c81d32 into main 2026-08-28 08:54:00 +00:00
ammaratef45 deleted branch fix_smtp 2026-08-28 08:54:01 +00:00
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