— thunderbird − Mail User Agent (MUA) and
newsgroup/RSS client for X11 derived from the Mozilla
provides IMAP/POP support, a built-in RSS reader, support
for HTML mail, powerful quick search, saved search folders,
advanced message filtering, junk mail controls, message
grouping, labels, return receipts, smart address book LDAP
address completion, import tools, and the ability to manage
multiple identities in email and newsgroup accounts.
Thunderbird provides enterprise and government grade
security such as S/MIME, digital signing, message
encryption, and support for certificates and security
If no profile is given to the
−P option, the profile manager will pop-up. You will
be allowed to create or select a profile. Thunderbird then
launches with the selected profile.