Instead of die_on_error, check for the error yourself: 
my $sftp = Net::SFTP::Foreign->new($host, password => $password);
if ($sftp->error) {
   # Send the email.
}

[download]

If you also need help sending email from Perl, see Task::Kensho::Email. 

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: Need alarm while getting error on SFTP by choroba
in thread Need alarm while getting error on SFTP by ravi45722

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