[Bug] Mailer Responder not working within tasks

[SOCOST]

Describe the bug
Last version of the responder "Mailer" is not sending any emails when executed within tasks, despite showing a success log. When the same Mailer with the same settings is executed within a case, the emails are sent without issues.

To Reproduce
Steps to reproduce the behavior:
Create a task and run the responder "Mailer_1_0"
Expected behavior:
Send an email to the mail account especified in the task description "mailto:xxx@xxx.com"

Complementary information

This is the report from Cortex:
{
"summary": {},
"full": {
"message": "message sent"
},
"success": true,
"artifacts": [],
"operations": [
{
"type": "AddTagToCase",
"tag": "mail sent"
}
]
}

Work environment

Client OS: Windows 10 v1909
Server OS: Ubuntu 20.04 LTS
Browse type and version: Chrome Versión 84.0.4147.105 (Build oficial) (64 bits)
Cortex version: 3.0.1-1
Cortex Analyzer/Responder name: Mailer 1.0
Cortex Analyzer/Responder version: 1.0

[SOCOST]

Resolved. The recipent address must be in the first line of the task description in order to work correctly