Email sending broken after updating to 8.2.x (due to IPv6 issues)

[girish]

@Gengar Which ubuntu version are you on ? Unbound behavior slighly varies based on Ubuntu 22.04 and 24.04

Can you please try this:

• Edit /home/yellowtent/box/src/mail.js . You will find a line at around line 86 like const DNS_OPTIONS = { timeout: 10000 }; .

• Change it to const DNS_OPTIONS = { timeout: 30000, tries: 4 }; .

• systemctl restart box

[Gengar]

@girish Thank you for your help .

I am using Ubuntu 24.04.

I've edited what you told me to edit.

If I understand correctly , it could happen simply because there was no retry and a time out after 10 seconds.
And now that we changed it to 4 retries and 30 seconds, so if it was a time out issue, it should solve it now by giving it more opportunities to do it if it's a bit slow.

Is this setting override by each cloudron update ?

I will monitor and let you know if it solved my issue or not.

[girish]

@Gengar yeah, just guessing here that maybe it is taking more than 10s for the initial resolution. There is a default retry of 2 times . Don't know if changing it to more helps . I have been looking into the unbound docs on increasing the timeout in general but haven't found a good config variable yet.

[Gengar]

@girish Yeah makes sense. I will monitor and update in this post with the final result. Thx again for your help.

Would I have to set this after each cloudron update ? Or is this setting never overriden ?

[girish]

@Gengar I will update our code for the next release if the fix works.