User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006 When several outgoing mail servers are listed, the "default" tag is ignored, and only the first one is used, even if it is not marked default. Reproducible: Always Steps to Reproduce: 1. Add a few mail servers in the list of outgoing ones 2. Set any but 1st "default" 3. Try to send an e-mail and see that the first in the list is always used Actual Results: Well, mail was not send as the non-default server did not allow relaying Expected Results: Use the outgoing server marked "default", as the Mozilla mail client does (not Thunderbird 0.5 though) I have a suspicion it actually worked in Thunderbird 0.3

I'm using Thunderbird 0.6 on Mac OS X Panther 10.3.4 and can confirm that this is a bug. I added another mail server to the list under the advanced button and then set the new server as the default, but mail would still attempt to be sent via the first server [even though it was not default]. In order to use the second mail server I had to delete the first one; kinda defeats the purpose of this feature. Thanks!

Well, thanks berto for reminding: this is not a bug, but rather a messy misfeature. The problem is that there are two places where SMTP server preferences are configured: not only in the "Outgoing Server" menu, BUT ALSO (!!!) in the incoming mailbox configuration, "Server settings -> Advanced..." menu. My bad, I forgot about this silly feature, although it is there since Netscape 4-something. So, the real request for the developers is: please, make a single outgoing SMTP server preferences menu, or at least don't hide it the way it is. People normally use SMTP server depending on the client domain, not on the inbox one.

Current and technically proper design of multiple SMTP use consists of two steps, (1) SMTP definition in "Outgoing Server(SMTP)", (2) SMTP Server choice in "Server Settings" of Account definition. However, both are hidden in "Advanced button". So many users could not find where to do, especially step(2), then many users could not use multiple SMTP server easily. In order to reduce this kind of user error, Bug 202468 was opened by developer and is under development See Bug 202468 "Simpler, more consolidated UI for SMTP server settings"

See also Bug 222388 This is direct solution for confused users like you. >Bug 222388 > Set initial SMTP server setting to "Always Use Deafult SMTP Server" instead of specific SMTP server

I am far from being sure it is "technically correct" to have SMTP server preferences merged with those of IMAP or POP3, as those are independent services. Seems like developers are more confused than users. But I close this bug as an apparent duplicate of 202468. *** This bug has been marked as a duplicate of 202468 ***