Android Question Reading particular mail in gmail thru POP3

Hi,

I am trying to read a particular OTP email (in gmail) from POP3. As suggested by Erel somewhere I am using a service for catching email.
If i use timer interval 1000 the POP_ListCompleted eveny does not fire if i use 1500 it fires.

Can anyone suggest a better way of doing this as I want to read OTP as soon as it comes.

Thanks
Juzer