E-card does not arrive, but no error messages

[anna.y]

I installed Coppermine last night.  Installation went amazingly well.  Everything seems in order. 

Today I tested an e-card feature.  It went OK, displayed a 'Your ecard was sent' message, displayed OK in 'Display eCards'.  However, it did not arrive in recipients e-mail boxes...  I tried few different e-mail addresses and recipients are not getting their cards...

I'm obviously doing something wrong...  could I get some suggestions where to look for solutions

Thank you

Anna 

[Tranz]

Your server might require authentication. Try editing include/mailer.inc.php where it has the server login details.

[anna.y]

Thank you so much TranzNDance,  I'll try that... 

Anna