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Emails wont send but only certain ones - blocked emails?

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Posted 11/12/2009 6:02 AM

Forum Newbie

Group: Forum Members
Active: 11/12/2009
Posts: 1

Hi all,

im having trouble sending only certain emails to certain addresses, i think it has something to do with greylisting, or im being blocked cos the receiving email server doesnt know who i am as such. Heres a error log that i get when i try sending to a hotmail acc:

Thread 1: 11:34:08 AM [<-->] : Connecting to mx1.hotmail.com
Thread 1: 11:34:09 AM [<-->] : Connected.
Thread 1: 11:34:09 AM [--->] : 220 snt0-mc1-f43.Snt0.hotmail.com Sending unsolicited commercial or bulk e-mail to Microsoft's computer network is prohibited. Other restrictions are found at http://privacy.msn.com/Anti-spam/. Violations will result in use of equipment located in California and other states. Thu, 12 Nov 2009 03:34:09 -0800
Thread 1: 11:34:09 AM [<---] : HELO 127.0.0.1
Thread 1: 11:34:10 AM [--->] : 554 Transaction failed
Thread 1: 11:34:10 AM [<---] : QUIT
Thread 1: 11:34:10 AM [<-->] : Disconnected.
Thread 1: 11:34:10 AM [<-->] : Error: 554 Transaction failed

Is there any way i can get this server, and others, to accept my emails?

Thanks all, as you can probably tell im new to Postcast etc.

IP Logged

Posted 11/23/2009 12:28 AM

Forum Administrator

Group: Advanced Members
Active: 8/31/2010
Posts: 1,866

Try to change the server identity in the HELO handshaking settings in the Settings/Advanced screen to the "mail.[server].com" format. Replace "[server]" with your ISP's domain name.

For example, if your ISP provides email address such as , set the HELO handshaking identification to mail.isp.com. Try also with only 'isp.com' format.

To make sure that all of your messages are delivered, the best approach is to find a reliable backup SMTP server. You can then use that server as an SMTP Gateway in the professional version of PostCast Server.

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