So I had previously used an account hosted on ninetestrunorg as a handy temporary email address to sign up for various services. For various reasons, I hadn’t used that address for a while. Today, when I tried to log in to a website I’d registered with using that address, it asked me to verify my email, and that’s when I realised I seem to be unable to retrieve the unencrypted emails from that server. I’m quite certain the verification email was delivered correctly, as Delta Chat showed a change in the mailbox size, I recall that when I registered, it stated that unencrypted emails could be received, which is why I used it as my registration email. It was only just now that I found relevant information indicating that the public service has tightened its support for unencrypted emails. Is there still any chance I can retrieve the unencrypted emails from that address? I really need those verification codes.
Delta Chat version
2.43.0 from F-droid
If you update to the latest version, 2.53.0, in relay settings there is an option “Enforce Encryption for All Relays”. You can then turn it off manually and unencrypted emails will be displayed when they arrive. You will need to request another email for this because already received one is ignored.
First of all, thank you very much for answering my question, but it doesn’t seem to be working. To start with, I previously created my X and Cloudflare accounts using the email address assigned by Deltachat. I’ve now followed the instructions to disable forced encryption (in fact, I realized it was already turned off, or perhaps I had turned it off earlier). But I’m still unable to receive verification emails from these two services. Based on the size of the email in my inbox, it appears the emails were successfully delivered (100 KiB → 127 KiB). Also, my Deltachat account is currently receiving login notifications and reply notifications from this forum without any issues. I’m a bit confused as to where the problem lies—could it be an issue with X and Cloudflare’s email service providers?
And Also, I don’t know why the results for the INBOX folder in my log consistently show ‘no new emails’, even though the used storage space in my mailbox has clearly increased.
I don’t think the mails are delivered, as I noticed that chatmail rejects messages from noreply@notify.cloudflare.com with DKIM signature failures.
More specifically, it fails to validate the signature of the message body (so it is not some DNS issue with fetching the keys) and “dkimverify” tool confirms that body hash does not correspond to the one in DKIM-Signature. Likely the message get corrupted somewhere during reception. I opened feat(postfix): disable processing of MIME headers by link2xt · Pull Request #1016 · chatmail/relay · GitHub which might help as it at least makes it clear that Postfix will not remove “headers” from the message body.