Our SMTP frontend survived all this week without problems, which wassomething of an accomplishment this week. Because this week, we:

• got 13,546 messages from 227 different IP addresses.
• handled 19,984 sessions from 1,283 different IP addresses.
• received 1,419,542 connections from at least 52,806 different IPaddresses.
• hit a highwater of 9 connections being checked at once.

Yes, that is not a

The Open Group Base Specification Issue 6 is, well, toquote it:

This standard is the single common revision to IEEE Std 1003.1-1996,IEEE Std 1003.2-1992, and the Base Specifications of The Open GroupSingle UNIX Specification, Version 2.

(Those IEEE standards are better known as 'POSIX'.)

The Single Unix Specification (SUS) is a very useful authoritativereference for how various things should behave in theory

Today I was unpleasantly surprised to discover that Postfix defaults tohaving a 50 megabyte size limit on user mailboxes, after which emailbounces. This default limit is apparently sufficiently unimportant tonot be mentioned in the 'basic' or 'standard' general configurationdocumentation.

Perhaps this will strike people as a petty reason for disliking Postfix;after all, it's just one configuration option. But it is the symptom ofa deeper problem.

Since Postfix people have made one dangerous random arbitrary default(and not drawn attention