Sending mail to Hotmail, AOL gets bounced

[coopa]

Jan 10 19:29:48 nethost postfix/smtp[31709]: A8F796FC211: to=<XXXXXXXXXX@msn.com>, relay=mx1.hotmail.com[65.55.37.88]:25, delay=0.89, delays=0.03/0.01/0.68/0.16, dsn=5.0.0, status=bounced (host mx1.hotmail.com[65.55.37.88] said: 550 DY-001 Mail rejected by Windows Live Hotmail for policy reasons. We generally do not accept email from dynamic IP's as they are not typically used to deliver unauthenticated SMTP e-mail to an Internet mail server. http://www.spamhaus.org maintains lists of dynamic and residential IP addresses. If you are not an email/network admin please contact your E-mail/Internet Service Provider for help. Email/network admins, please visit http://postmaster.live.com for email delivery information and support (in reply to MAIL FROM command))
Jan 10 19:29:48 nethost postfix/smtp[31709]: A8F796FC211: lost connection with mx1.hotmail.com[65.55.37.88] while sending RCPT TO
Jan 10 19:29:48 nethost postfix/cleanup[31708]: 88E396FC226: message-id=<20100110192948.88E396FC226@XXXXXXXXXXX.co.uk>

Will send through outlook but i get this when i use Squirrelmail or Roundcube. ISP Omega 1.0.3 Debian

[motokochan]

It looks like your server has an IP that is listed as being in a dynamic range. Are you running from a dynamic IP?

[coopa]

(01-11-2010 05:58 AM)coopa Wrote:  Jan 10 19:29:48 nethost postfix/smtp[31709]: A8F796FC211: to=<XXXXXXXXXX@msn.com>, relay=mx1.hotmail.com[65.55.37.88]:25, delay=0.89, delays=0.03/0.01/0.68/0.16, dsn=5.0.0, status=bounced (host mx1.hotmail.com[65.55.37.88] said: 550 DY-001 Mail rejected by Windows Live Hotmail for policy reasons. We generally do not accept email from dynamic IP's as they are not typically used to deliver unauthenticated SMTP e-mail to an Internet mail server. http://www.spamhaus.org maintains lists of dynamic and residential IP addresses. If you are not an email/network admin please contact your E-mail/Internet Service Provider for help. Email/network admins, please visit http://postmaster.live.com for email delivery information and support (in reply to MAIL FROM command))
Jan 10 19:29:48 nethost postfix/smtp[31709]: A8F796FC211: lost connection with mx1.hotmail.com[65.55.37.88] while sending RCPT TO
Jan 10 19:29:48 nethost postfix/cleanup[31708]: 88E396FC226: message-id=<20100110192948.88E396FC226@XXXXXXXXXXX.co.uk>

Will send through outlook but i get this when i use Squirrelmail or Roundcube. ISP Omega 1.0.3 Debian

Yeah, but it works fine through outlook with the server requires authentication option enabled, but through webmail it b0rks

[motokochan]

Are you sending through the same outgoing server? It would be very odd if you were and that was the case. Remember that Outlook only uses the outgoing server of the primary/default account.