diffred@fredlab:~/pathscripts$ ./sendemail.pl
Net::SMTP::SSL>>> Net::SMTP::SSL(1.01)
Net::SMTP::SSL>>>   IO::Socket::SSL(1.17)
Net::SMTP::SSL>>>     IO::Socket::INET(1.29)
Net::SMTP::SSL>>>       IO::Socket(1.29)
Net::SMTP::SSL>>>         IO::Handle(1.25)
Net::SMTP::SSL>>>           Exporter(5.58)
Net::SMTP::SSL>>>   Net::Cmd(2.29)
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 220 mx.google.com ESMTP g11sm3140596
+gve.8
Net::SMTP::SSL=GLOB(0x8580d7c)>>> EHLO localhost.localdomain
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 250-mx.google.com at your service, [
+80.32.103.182]
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 250-SIZE 35651584
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 250-8BITMIME
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 250-AUTH LOGIN PLAIN
Net::SMTP::SSL=GLOB(0x8580d7c)<<< 250 ENHANCEDSTATUSCODES
Error sending email: Email::Send::Gmail: error authenticating username
+ diffredential@gmail.com at /usr/local/share/perl/5.8.8/Email/Send.pm
+ line 243
 at ./sendemail.pl line 29
diffred@fredlab:~/pathscripts$
[download]

it sends the email properly!!
No it doesn't, as It doesn't use gmail service (and your gmail account).

So I cannot understand why this script works on sending an email in my PC and mine posted here don't (which works on Mac OSX!). Quite a flying experience.

See Re^5: Sending a simple email using Email::Send::Gmail, you might figure it out.