On 1/6/21 16:38, Michael Wise via mailop wrote:
Can you please share at the very least, the IP in question and the full error message?
2021-01-06T16:34:09.179927-08:00 smtpauth postfix/smtp[17311]: 202C32800046: to=<[email protected]>, relay=hotmail-com.olc.protection.outlook.com[104.47.10.33]:25, delay=2, delays=1.5/0/0.4/0.14, dsn=5.7.1, status=bounced (host hotmail-com.olc.protection.outlook.com[104.47.10.33] said: 550 5.7.1 Unfortunately, messages from [208.79.240.5] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [DB5EUR03FT040.eop-EUR03.prod.protection.outlook.com] (in reply to MAIL FROM command))
2021-01-06T16:30:16.291292-08:00 smtpauth postfix/smtp[17322]: 799A22800049: to=<[email protected]>, relay=outlook-com.olc.protection.outlook.com[104.47.59.161]:25, delay=0.79, delays=0.21/0/0.52/0.06, dsn=5.7.1, status=bounced (host outlook-com.olc.protection.outlook.com[104.47.59.161] said: 550 5.7.1 Unfortunately, messages from [208.79.240.5] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [DM6NAM12FT003.eop-nam12.prod.protection.outlook.com] (in reply to MAIL FROM command))
2021-01-06T14:16:26.329892-08:00 smtpauth postfix/smtp[12993]: 8FD75280085E: to=<[email protected]>, relay=live-com.olc.protection.outlook.com[104.47.18.161]:25, delay=2.7, delays=2.1/0/0.45/0.15, dsn=5.7.1, status=bounced (host live-com.olc.protection.outlook.com[104.47.18.161] said: 550 5.7.1 Unfortunately, messages from [208.79.240.5] weren't sent. Please contact your Internet service provider since part of their network is on our block list (S3150). You can also refer your provider to http://mail.live.com/mail/troubleshooting.aspx#errors. [AM7EUR06FT042.eop-eur06.prod.protection.outlook.com] (in reply to MAIL FROM command))
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