[backend]: },
[backend]: level: 'info',
[backend]: timestamp: '2026-07-31T03:54:10.948Z'
[backend]: }
[backend]: Error: Mail command failed: 501 Error: Bad sender address syntax
...
[backend]: at TLSSocket.emit (node:events:518:28)
[backend]: at addChunk (node:internal/streams/readable:561:12)
[backend]: at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
[backend]: at Readable.push (node:internal/streams/readable:392:5) {
[backend]: code: 'EENVELOPE',
[backend]: response: '501 Error: Bad sender address syntax',
[backend]: responseCode: 501,
[backend]: command: 'MAIL FROM'
[backend]: }
[backend]: {
