Connection could not be established with host mail.domain.com [Connection timed out #110]
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@humptydumpty are you using Cloudflare? I can't think of any other reason
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For the mail server domain, yes. The mailbox (different domain) is using Bunny. Proxy is off though. CDN acceleration is disabled in Bunny DNS. I didn't change anything at all when this issue started. It's been working fine. I use FS daily. Also, mail is working fine in Roundcube so DNS, ports, wtv are correct. It's FS that's picky, no sending/fetching of mailboxes. Oh, and I have multiple mailboxes using domains on Cloudflare and Bunny. Issue is the same for all. Issue is the same on a fresh FS, so it's not module related either.
Under
manage > mail settings > system emails > send test to--- This test email is sent and received fine! -
@humptydumpty the system email is configured by cloudron itself. You can ignore this (for this problem).
One thing in your screenshot: I noticed now that FS has changed it's TLS options (very nice). You have to choose STARTTLS for port 587. In yours it is none.
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The docs still say to use none if CR mail and FS are on the same server (which they are for my case). I updated it to TLS, but issue persists. I even restarted the app with no effect.
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@humptydumpty the docs are a bit outdated since FS has changed the Encryption options. I will fix that once we resolve this... I am out of ideas now though. Can you send us an email to support@cloudron.io with the domain? It must be something very obvious because our FS works.
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@girish I'm not sure if you got my email as I sent an email (proton email) to my CR email (roundcube) and I didn't receive it. I deleted the Hetzner firewall (as I've had it this whole time) and then sent a new email and then it was received in Roundcube.
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@humptydumpty thanks.
Just as an update: we found that for some reason, the docker containers (any of them) are unable to reach any port other than port 443/80 using the public IP. From the server itself, all ports of public IP are reachable... Have to debug this further tomorrow.
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Any update on this? I'm having the same issue.
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This is happening if the mailserver and freescout are on the same server. You can either move FS to another CR or change the mailbox settings (sending/fetching) to what's shown in the screenshots below until a perm fix is released and then you can revert to the previous settings.
SENDING
FETCHING
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Right, the issue here was related to disabling the userland proxy in Docker. This breaks setups where containers in UDN are unable to connect to each other via public IP. Will investigate this coming week for a proper fix. Until then, simply use what @humptydumpty said
