sendmail losing e-mails

[Michael Velez]

Hello all,

I have configured sendmail on my home Dell 370 (running RHEL v4) to send
e-mails to my external e-mail address via my ISP.  1 out of every 10 e-mails
usually gets lost (i.e. is not delivered to my e-mail account).  The ones
that are received are received perfectly, with all header info rewritten as
appropriate.

The /var/log/maillog does not shed any light as all e-mails show a status of
queued for delivery.  Below is a log extract where the 7:15:02 e-mail was
not received but the 7:23:36 e-mail was received. Same output as far as I
can tell.

Also, sometimes an e-mail takes a long time to get delivered and will be
received after an e-mail that had been sent at a later date.

Can anybody guide me as to where I need to look?  Is this my system doing
this or could it be my ISP holding up these messages for fear they are spam
(which they are not)?

Would appreciate any help,
Michael

--- CHANGES TO sendmail.mc ---
define(`SMART_HOST', `smtp.wanadoo.fr')
MASQUERADE_AS(`wanadoo.fr')dnl
FEATURE(masquerade_envelope)dnl
FEATURE(genericstable, `hash -o /etc/mail/genericstable')
GENERICS_DOMAIN_FILE('/etc/mail/genericsdomain')
---- END CHANGES ---



--- START OF MAILLOG EXTRACT ---

Oct 26 07:15:02 LINUXWS1 sendmail[6351]: j9QBF20k006351: from=michael,
size=337, class=0, nrcpts=1,
msgid=<20051026111502.GA6343 at linuxws1.linuxws1>, relay=michael at localhost
Oct 26 07:15:02 LINUXWS1 sendmail[6352]: j9QBF2iM006352:
from=<michael at LINUXWS1.mougins>, size=493, class=0, nrcpts=1,
msgid=<20051026111502.GA6343 at linuxws1.linuxws1>, proto=ESMTP, daemon=MTA,
relay=localhost.localdomain [127.0.0.1]
Oct 26 07:15:02 LINUXWS1 sendmail[6351]: j9QBF20k006351:
to=mikev777 at hotmail.com, ctladdr=michael (500/500), delay=00:00:00,
xdelay=00:00:00, mailer=relay, pri=30337, relay=[127.0.0.1] [127.0.0.1],
dsn=2.0.0, stat=Sent (j9QBF2iM006352 Message accepted for delivery)
Oct 26 07:15:03 LINUXWS1 sendmail[6354]: j9QBF2iM006352:
to=<mikev777 at hotmail.com>, ctladdr=<michael at LINUXWS1.mougins> (500/500),
delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120493,
relay=smtp.wanadoo.fr. [193.252.22.64], dsn=2.0.0, stat=Sent (Ok: queued as
B480B1C000A1)

Oct 26 07:23:36 LINUXWS1 sendmail[6506]: j9QBNan7006506: from=michael,
size=337, class=0, nrcpts=1,
msgid=<20051026112336.GA6498 at linuxws1.linuxws1>, relay=michael at localhost
Oct 26 07:23:37 LINUXWS1 sendmail[6507]: j9QBNa3e006507:
from=<michael at LINUXWS1.mougins>, size=493, class=0, nrcpts=1,
msgid=<20051026112336.GA6498 at linuxws1.linuxws1>, proto=ESMTP, daemon=MTA,
relay=localhost.localdomain [127.0.0.1]
Oct 26 07:23:37 LINUXWS1 sendmail[6506]: j9QBNan7006506:
to=mikev777 at hotmail.com, ctladdr=michael (500/500), delay=00:00:01,
xdelay=00:00:01, mailer=relay, pri=30337, relay=[127.0.0.1] [127.0.0.1],
dsn=2.0.0, stat=Sent (j9QBNa3e006507 Message accepted for delivery)
Oct 26 07:23:38 LINUXWS1 sendmail[6509]: j9QBNa3e006507:
to=<mikev777 at hotmail.com>, ctladdr=<michael at LINUXWS1.mougins> (500/500),
delay=00:00:01, xdelay=00:00:01, mailer=relay, pri=120493,
relay=smtp.wanadoo.fr. [193.252.22.73], dsn=2.0.0, stat=Sent (Ok: queued as
11C311C00262)

--- END OF MAILLOG EXTRACT ---