[lug] [ot] MX backup partners

[Jeffrey Siegal]

David Anselmi wrote:

> Jeffrey Siegal wrote:
> [...]
> 
>> There are a significant number of mail servers that will bounce after 
>> 1 day, though 4 days is much more common.
> 
> 
> How many?  How do you know?

It is a small number, but definitely not zero.  I know because when a 
reasonably-high-volume mail server I manage was down for more than a 
day, people started complaining that mail was being returned.  The 
*vast* majority of the mail did remain queued until the server came back 
up (about 2-3 days).