Mailing List Archive: Qmail - domains with multiple servers and the priority server is down

Armindo Costa (DIGI) <extranet@mail.autoindustrial.net> wrote:
> When qmail server sends an e-mail for a domain with multiple servers, if MX
> priority server is down messages are not delivered to the secondary server

That's incorrect. qmail does indeed deliver to the lower-priority MXes if the
highest-priority one is down. The word "down" is important.

> and the user receives a message:
>
> Connected to x.x.x.x but connection died. (# 4.4.2)

If x.x.x.x is the primary MX, the problem here is that the primary MX *wasn't
down*. It was accepting connections. qmail will not try to connect to the
lower-priority MXes when it can connect to the highest-priority one.

The receiving domain is broken. The mail isn't getting through due to
administrator error; try contacting the postmaster there.

Charles
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