2026-04-11 04:45:47 SERVER -&gt; CLIENT: 220 outx.smtp.uc.edu.ve ESMTP<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: EHLO sendx.redmasiva.ai<br>
2026-04-11 04:45:47 SERVER -&gt; CLIENT: 250-outx.smtp.uc.edu.ve250-PIPELINING250-SIZE 50000000250-ETRN250-STARTTLS250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250-SMTPUTF8250 CHUNKING<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: STARTTLS<br>
2026-04-11 04:45:47 SERVER -&gt; CLIENT: 220 2.0.0 Ready to start TLS<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: EHLO sendx.redmasiva.ai<br>
2026-04-11 04:45:47 SERVER -&gt; CLIENT: 250-outx.smtp.uc.edu.ve250-PIPELINING250-SIZE 50000000250-ETRN250-AUTH PLAIN LOGIN250-AUTH=PLAIN LOGIN250-ENHANCEDSTATUSCODES250-8BITMIME250-DSN250-SMTPUTF8250 CHUNKING<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: AUTH LOGIN<br>
2026-04-11 04:45:47 SERVER -&gt; CLIENT: 334 VXNlcm5hbWU6<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: [credentials hidden]<br>
2026-04-11 04:45:47 SERVER -&gt; CLIENT: 334 UGFzc3dvcmQ6<br>
2026-04-11 04:45:47 CLIENT -&gt; SERVER: [credentials hidden]<br>
2026-04-11 04:45:51 SERVER -&gt; CLIENT: 535 5.7.8 Error: authentication failed: (reason unavailable)<br>
2026-04-11 04:45:51 SMTP ERROR: Password command failed: 535 5.7.8 Error: authentication failed: (reason unavailable)<br>
SMTP Error: Could not authenticate.<br>
2026-04-11 04:45:51 CLIENT -&gt; SERVER: QUIT<br>
2026-04-11 04:45:51 SERVER -&gt; CLIENT: 221 2.0.0 Bye<br>
Error en la conexión SMTP: