Sendmail is a MTA "Mail Transport Agent" Thunderbird is a mail client.

Thunderbird talks to an MTA. If you are running a mail sever on this machine you will need an MTA, Sendmail is as good as any.
You should consider running Dovecot "IMAP server" with Sendmail if you are sending and receiving email through this machine.

Joe
ecard


Licensed Real Estate Broker
Joe Ardolino
Broker/Realtor


Office: 305 598-9557 Ext. 211
Cell: 305 710-0119
Fax: 786 787-1103
Web: http://www.realprogroup.com
E-Mail: joe@realprogroup.com
Mail: PO Box 161679
Miami, Fl 33116-1679

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On 5/30/2012 7:58 AM, sergiocmailbox-fedorausers@yahoo.com.br wrote: 
Hi, we have the sendmail.service enabled by default even in the minimal installation.
I only use Thunderbird as my email client.
May I uninstall sendmail? Is it needed for something I'm not aware of?

Regards.