A fix has been implemented and I'm currently monitoring the situation for problems.
Posted Oct 24, 2024 - 02:21 BST
Update
The latest issue appears to be due to an error in reading a valid SSL certificate signature. A workaround is being implemented.
Posted Oct 23, 2024 - 22:18 BST
Update
The fix resolved HTTP 504 on the development server, but failed to resolve on the production server. I apologise for the inconvenience caused and I am working hard to implement a fix.
Posted Oct 23, 2024 - 17:45 BST
Identified
The issue has been correctly identified as having erroneously used STARTTLS instead of SSL/TLS. A fix has been implemented and will roll out shortly.
Posted Oct 23, 2024 - 17:40 BST
Investigating
The issue was confirmed not to be related to SMTP authentication and further investigation is being done.
Posted Oct 23, 2024 - 17:30 BST
Identified
The issue appears to be related to an SMTP authentication failure. A fix is being tested.
Posted Oct 23, 2024 - 17:24 BST
Investigating
I'm aware of an issue regarding SMTP which is causing my Contact form to respond with HTTP 504.
Posted Oct 23, 2024 - 16:57 BST
This incident affected: oliverbooth.dev (Email Proxy).