From time to time (very frequent actually) I do not receive list
mails for a day or two. Sometimes I receive a few in a day but
apparently not all that should reach me. I think I finally have
a clue of why. If the cause is already known by most of you I hope this
will be beneficial to whoever also have this problem but still don't
know why. I am talking about Yahoo Mail.

I received no list mails in the past few days. But they suddenly
appeared in my mailbox this morning. What's interesting is that
the late mails did not show up at the top of my mailbox. They showed
up deep inside the mailbox. Had I not looked deep into the past
few days I would probably have missed them and kept thinking that
I did not receive list mails again for the past few days.

I believe the reason these late mails did not show up at the top of
my mailbox because they were not received late by Yahoo. They were
probably received instantly (almost) by Yahoo. But they were not
instantly known by the mail server that I logged into Yahoo to read
my mails. My guess is the mails were received by a server always
almost instantly. But this server somehow left them in the queue
for a long time (very long like a day or two) then eventually let
the mail server that I logged into know that there are more mails
there. These mails were not late. But they were not know by the mail server that has my mailbox.

This is very scary. They can receive mails for you but don't let you
get them until a day or two later. Some of them may be lost. Some of
them may be late to show up in your mailbox for many days and you will
miss them because they will be deep in there by the time they showed up.

If you get lots of mails everyday like I do you may never seem them
unless you spend the time digging your mailbox back a few days each
time you check your mailbox.

I maybe wrong. If this is the fact Yahoo mail is not very usable.

David