Steve Atkins <steve(_at_)blighty(_dot_)com> wrote:
Mail that's delivered quickly, in a minute or so, vs mail that sometimes
takes a half hour to deliver makes a difference to the end user.
An ESMTP client, such as your ISP smarthost, will wait a while before
retrying in response to a 4xx deferral. The RFCs say they should wait at
least 30 minutes the first time.
Why not just ignore this suggestiona and retry more frequently?
f.anthony.n.finch <dot(_at_)dotat(_dot_)at> http://dotat.at/
South Biscay: Southerly veering westerly 4 or 5, becoming variable 3 later.
Rough, occasionally very rough later. Rain or showers. Good, occasionally poor