Has anyone had success in getting an new IP past the Smart screen content filter? MS support keep sending me canned responses. No messages arrive in the @outlook.com account Here is a manual try: -sh-4.2$ telnet mx1.hotmail.com 25 Trying 65.55.92.168... Connected to mx1.hotmail.com. Escape character is '^]'. 220 SNT004-MC3F13.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at http://privacy.microsoft.com/en-us/anti-spam.mspx. Mon, 25 Jan 2016 20:29:51 -0800 HELO bne.recruitonline.com.au 250 SNT004-MC3F13.hotmail.com (3.21.0.230) Hello [103.16.128.141] MAIL FROM: piers@r.id.au 250 piers@r.id.au....Sender OK RCPT TO: piers@outlook.com 250 piers@outlook.com DATA 354 Start mail input; end with <CRLF>.<CRLF> Testing . 250 <SNT004-MC3F13p7mvjk000d0d99@SNT004-MC3F13.hotmail.com> Queued mail for delivery QUIT 221 SNT004-MC3F13.hotmail.com Service closing transmission channel Connection closed by foreign host. And here is a log snippet: Jan 26 15:25:55 bne postfix/smtpd[15845]: 6F53D18344: client=localhost[::1] Jan 26 15:25:55 bne postfix/cleanup[15848]: 6F53D18344: message-id=<20160126042555.6F53D18344@bne.recruitonline.com.au> Jan 26 15:25:55 bne postfix/qmgr[15722]: 6F53D18344: from=<support@recruitonline.com.au>, size=6837, nrcpt=1 (queue active) Jan 26 15:25:55 bne postfix/smtpd[15845]: disconnect from localhost[::1] Jan 26 15:25:57 bne postfix/smtp[15849]: 6F53D18344: to=<piers@outlook.com>, relay=mx3.hotmail.com[207.46.8.167]:25, delay=1.9, delays=0.04/0.01/0.49/1.3, dsn=2.0.0, status=sent (250<20160126042555.6F53D18344@bne.recruitonline.com.au> Queued mail for delivery) Jan 26 15:25:57 bne postfix/qmgr[15722]: 6F53D18344: removed I can't see anything in the MTA queue. Thanks for your help Cheers Piers