On: Moving 12 years of email from GMail to FastMail

[dave_atx]

It was down long enough that it blew through the queue for several (most? some?) MTAs which were about ~36 hours if I remember correctly.

[whacker → dave_atx]

The default I have seen everywhere (qmail, postfix) is a week.

[monkeywork → whacker]

that's assuming no one changes defaults... if your a large enough provider you are tweaking these settings.