Sending to "orange.fr" gets message "SMTP error from remote server for TEXT command, host: smtp-in.orange.fr (80.12.242.9) reason: 552 5.2.0 Invalid 7bit DATA | Forum d'assistance Thunderbird | Assistance de Mozilla
DigiView User Guide by TechTools Datasheet | DigiKey
Fldigi Users Manual: Configure ARQ/KISS I/O
Invalid digest value · Issue #288 · OxalisCommunity/oxalis · GitHub
MTA — CipherMail Documentation
Messages bounced with “552 5.2.0 Invalid 7-bit DATA” error
Pi Toolset 7.0 keeps crashing since Friday - Customer Support