Send email with SIM 800L

Hello,

I am using an Arduino nano and a SIM 800L module to try to send an email. The module backs 'ok' to all commands but it finishes with an error message '+SMTPSEND: 61'. Any idea on what's going wrong?

The dialogue that I have in the serial monitor is:

11:10:56.529 -> AT+CREG?

11:10:56.529 -> +CREG: 0,5
11:10:56.529 ->
11:10:56.529 -> OK
11:10:58.360 -> AT+SAPBR = 3,1,CONTYPE,GPRS

11:10:58.360 -> OK
11:11:00.160 -> AT+SAPBR=3,1,APN,TM

11:11:00.160 -> OK
11:11:01.988 -> AT+SAPBR=1,1

11:11:01.988 -> OK
11:11:03.790 -> AT+EMAILCID=1

11:11:03.790 -> OK
11:11:05.622 -> AT+EMAILTO=120

11:11:05.622 -> OK
11:11:07.440 -> AT+EMAILSSL=1

11:11:07.440 -> OK
11:11:09.295 -> AT+SMTPSRV="smtp.mail.yahoo.com","465"

11:11:09.295 -> OK
11:11:11.122 -> AT+SMTPAUTH=1,"myEmail@yahoo.com","myPassword"

11:11:11.157 -> OK
11:11:12.972 -> AT+SMTPFROM="myEmail@yahoo.com","myName"

11:11:12.972 -> OK
11:11:14.812 -> AT+SMTPRCPT=0,0,"anotherEmail@gmail.com","anotherName"

11:11:14.845 -> OK
11:11:16.639 -> AT+SMTPSUB="test"

11:11:16.639 -> OK
11:11:18.444 -> AT+SMTPBODY=19

11:11:18.444 -> DOWNLOAD
11:11:20.253 ->
11:11:20.253 -> OK
11:11:22.072 -> AT+SMTPSEND

11:11:22.072 -> OK
11:11:29.697 -> AT+SAPBR=0,1

11:11:29.697 -> +SMTPSEND: 61
11:11:29.697 ->
11:11:29.697 -> OK

11:11:09.295 -> AT+SMTPSRV="smtp.mail.yahoo.com","465"

465 is the default port for smtps, the TLS encrypted version of SMTP. As far as I know SIM800 devices cannot connect using TLS.