Hello There!
Overall, 3 Mail Accounts have been configured within Mozilla Thunderbird vide my ISP one(POP), Gmail(IMAP) & gmx.com(POP). How to decide that which one of the 3 respective SMTP Servers should be made the "Default SMTP Server"??
Secondly, what exactly one means by the "Default" SMTP Server?...because each of the Mail A/c ultimately uses its very own SMTP Server to deliver a Mail.Then, how does the question of "Default" arises over here?