sendmail to hotmail.com

[yanyin]

When the content of message is being
#!/usr/bin/php
<?php
foreach($id as $val){

file_get_contents("https://www.example.com/admin/script.php?user_id=$val&date=today");
}
?>
, emails can be successfully sent to hotmail accounts. However, when the content is being
#!/usr/bin/php
<?php
foreach($id as $val){

file_get_contents("https://www.example.com/admin/script.php?user_id=$val");
}
?>
, no emails can be received by hotmail accounts. Both work on gmail accounts, any idea why it is the case to hotmail accounts?

Verbose output is pasted below:
--- unsuccessfully one
mail -v -s "subject" user@hotmail.com < ~/message
user@hotmail.com... Connecting to [127.0.0.1] via relay...
220 www01.internal.example.org ESMTP Sendmail 8.13.1/8.13.1; Wed, 30 Aug 2006 02:00:55 -0700
>>> EHLO www01.internal.example.org
250-www01.internal.example.org Hello www.example.org [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> MAIL From:<root@www01.internal.example.org> SIZE=166 AUTH=root@www01.internal.example.org
250 2.1.0 <root@www01.internal.example.org>... Sender ok
>>> RCPT To:<user@hotmail.com>
>>> DATA
250 2.1.5 <user@hotmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 k7U90t1n006266 Message accepted for delivery
user@hotmail.com... Sent (k7U90t1n006266 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 www01.internal.example.org closing connection

Aug 30 02:01:37 www01 sendmail[6310]: k7U91bhU006308: to=<user@hotmail.com>, ctladdr=<root@www01.internal.example.org> (0/0), delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=120514, relay=mx1.hotmail.com. [65.54.244.136], dsn=2.0.0, stat=Sent ( <200608300901.k7U91bDN006307@www01.internal.exampl e.org> Queued mail for delivery)

--- successfully one
mail -v -s "subject" user@hotmail.com < ~/message
user@hotmail.com... Connecting to [127.0.0.1] via relay...
220 www01.internal.example.org ESMTP Sendmail 8.13.1/8.13.1; Wed, 30 Aug 2006 02:01:37 -0700
>>> EHLO www01.internal.example.org
250-www01.internal.example.org Hello www.example.org [127.0.0.1], pleased to meet you
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-8BITMIME
250-SIZE
250-DSN
250-ETRN
250-AUTH DIGEST-MD5 CRAM-MD5
250-DELIVERBY
250 HELP
>>> MAIL From:<root@www01.internal.example.org> SIZE=177 AUTH=root@www01.internal.example.org
250 2.1.0 <root@www01.internal.example.org>... Sender ok
>>> RCPT To:<user@hotmail.com>
>>> DATA
250 2.1.5 <user@hotmail.com>... Recipient ok
354 Enter mail, end with "." on a line by itself
>>> .
250 2.0.0 k7U91bhU006308 Message accepted for delivery
user@hotmail.com... Sent (k7U91bhU006308 Message accepted for delivery)
Closing connection to [127.0.0.1]
>>> QUIT
221 2.0.0 www01.internal.example.org closing connection

Aug 30 02:01:56 www01 sendmail[6268]: k7U90t1n006266: to=<user@hotmail.com>, ctladdr=<root@www01.internal.example.org> (0/0), delay=00:01:01, xdelay=00:01:00, mailer=esmtp, pri=120503, relay=mx2.hotmail.com. [65.54.244.40], dsn=2.0.0, stat=Sent ( <200608300900.k7U90tNR006265@www01.internal.exampl e.org> Queued mail for delivery)

[logan5]

I think it would have to do with Hotmail’s (Microsoft’s) policy on charging money for pop3 / SMTP access to the account where as it’s free with Goggle accounts.

Do some google searches on “pop3 access to hotmail” to find out what other people are doing.

[yanyin]

I am a bit confused. Why the messages in longer length can be sent but the ones with shorter length can't?
Actually, I have done another test on a college server and messages with only 7 characters can get to hotmail accounts. I am not sure if it's the problem from hotmail or the server I am using.

[gtmtnbiker98]

is your domain registered? If not, Hotmail may be blacklisting your domain as a Spam source. Something to consider...

[yanyin]

but that still doesn't answer why longer message works but not the shorter one

[gtmtnbiker98]

Spam is often times filtered by header and message length and that is what led me to question your domain registry. In addition, if your server is an open relay, it doesn't take very long for it to become black listed.

[mitto]

I am also receiving the same error while sending mail to hotmail users, whereas I could sent mail to gamil, yahoo or any other doamin from my Sendmail box

Apr 13 04:27:36 vps sendmail[16233]: l3DBRZXv016231: to=<mosavani@hotmail.com>, ctladdr=<root@xxxxxx.com> (0/0), delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=120317, relay=mx3.hotmail.com. [65.54.245.72], dsn=2.0.0, stat=Sent ( <200704131127.l3DBRYRi016230@xxxxxx.com> Queued mail for delivery)

I have tried various configuration with sendamil with no success, any idea?

[Oblonsky]

I'm having the same problem also - anyone got any ideas? I've just emailed M$ support. My domain and mailservers are properly configured with forward and reverse lookups etc. Wondering if it was anything to do with the header flags set by sendmail...