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646edfaa878ea951e239440937a13c4e5128057f
This was a 2-in-1 issue really. When a message line starts with a `.` we are required to encode it by prefixing the line with an additional `.`, aka: "dot stuffing". In our implementation of this we would unintentionally remap CRLF to CR, and then fail to emit CRLF.CRLF at the end of the data that we'd planned to send. The result of this was that we're hang waiting for the remote host to respond to our DATA, meanwhile, it was waiting for the end of our data. We'd sit there until either side reached their respective timeout for the data phase. This commit fixes up both parts of this bug.
KumoMTA
This repository holds the source code to KumoMTA, a modern Message Transfer Agent designed for large scale sending environments.
You can learn more about why it exists here.
Documentation
You can learn more about KumoMTA from the Documentation
Community
Real-time discussion is available on Our Discord.
Our Forum is better for long-form questions and discussions.
Developers
If you're interesting in contributing/extending KumoMTA, take a look at DEVELOPERS.md.
Getting Help
Please see How to Report Bugs or Get Help
Description
The first Open-Source high-performance MTA developed from the ground-up for high-volume email sending environments.
Readme
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