I get an error when trying to send an email to some destination email accounts. I've found the following solution on EE by Sembee but the link given doesn't work for me. Please let me know how to get around this error. Thanks.
Your message did not reach some or all of the intended recipients.
Sent: 3/27/2006 3:12 PM
The following recipient(s) could not be reached:
firstname.lastname@example.org on 3/27/2006 3:12 PM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<server.i-mservices.local #5.5.0 smtp;550-126.96.36.199 blocked by ldap:ou=rblmx,dc=comcast,d
SOLUTION BY SEMBEE
Even getting a static IP address will not help if they are on DSL.
Most ISPs will report all of their DSL connections as dynamic. Most "static" IP addresses are just reservations in a dynamic range and you will be surrounded by dynamic IPs.
Plus if you are on DSL you will be unable to get reverse DNS configured correctly, so other people will block you on that.
The best solution for all DSL users is to use an SMTP Connector to route email via your ISP.
smtp-connector.asp" target="_blank" onclick="return openNew(this.href);">http://www.amset.info/exchange/smtp-connector.asp
Please let me know how to fix this issue and/or get around it.