[fetchmail] EHLO localhost

I'm in the process of adding anit-UCE features to my Postfix config.

One of the options I would like to use is to reject non FQDN hostnames.

When I enable this I can see that fetchmail is tripping up as it issues a
EHLO localhost.

I'm already using the smtpaddress option and can see the RCPT TO: being set
correctly but I can't see a parameter to set the EHLO to a FQDN.

Is there such an option?

Regards

Alan