Net::SMTP::auth(/usr/share/perl/5.8/Net/SMTP.pm:114):
114:          die "auth(username, password)" if not length $username;
 DB<2> n
Net::SMTP::auth(/usr/share/perl/5.8/Net/SMTP.pm:115):
115:          $sasl = Authen::SASL->new(mechanism=> $mechanisms,
116:                                    callback => { user => $username,
117:                                                  pass => $password,
118:                                                  authname =>
$username,
 DB<2> n
Net::SMTP::auth(/usr/share/perl/5.8/Net/SMTP.pm:124):
124:        my $client =
$sasl->client_new('smtp',${*$self}{'net_smtp_host'},0);  DB<2> n
Net::SMTP::auth(/usr/share/perl/5.8/Net/SMTP.pm:124):
124:        my $client =
$sasl->client_new('smtp',${*$self}{'net_smtp_host'},0);  DB<2> n
Unknown callback: 'authname'. (user|auth|language|pass)
       Authen::SASL::client_new('Authen::SASL=HASH(0x856fa78)', 'smtp',
'outgoing.verizon.net', 0) called at /usr/share/perl/5.8/Net/SMTP.pm line
124
       Net::SMTP::auth('Net::SMTP=GLOB(0x850980c)', 'nnigam', 'mypassword')
called at posturl.pl line 103
Debugged program terminated.  Use q to quit or R to restart,
 use O inhibit_exit to avoid stopping after program termination,
 h q, h R or h O to get additional info.