SMTP Communication Problem and Blocked
Hello,
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.
PROBLEM
Your message did not reach some or all of the intended recipients.
Subject: RE:
Sent: 3/27/2006 3:12 PM
The following recipient(s) could not be reached:
email@comcast.net 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;550-71.111.48.108 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.
Thanks,
John
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.
PROBLEM
Your message did not reach some or all of the intended recipients.
Subject: RE:
Sent: 3/27/2006 3:12 PM
The following recipient(s) could not be reached:
email@comcast.net 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;550-71.111.48.108 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.
Thanks,
John
ASKER
I posted the error in my message. I'll seperate it so it's easier to read:
Your message did not reach some or all of the intended recipients.
Subject: RE:
Sent: 3/27/2006 3:12 PM
The following recipient(s) could not be reached:
email@comcast.net 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;550-71.111.48.108 blocked by ldap:ou=rblmx,dc=comcast,d
Your message did not reach some or all of the intended recipients.
Subject: RE:
Sent: 3/27/2006 3:12 PM
The following recipient(s) could not be reached:
email@comcast.net 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;550-71.111.48.108 blocked by ldap:ou=rblmx,dc=comcast,d
ASKER
Fyi, I don't have a dedicated IP address. My ISP assigns me an IP address through DHCP and I use DSL. To get a static IP I use www.tzo.com.
i understand you are dynamic IP, but usually an ISP just blocks your SMTP packets wholesale, so the ISP isn't doing it. It is comcast, who assumes that if you are in a IP block that is known to have dynamic IP setup, you are probably a roaming spammer, and they block you.
Send ALL your email through a smarthost, which will be set to the ISP's mail server (what they tell people to use if for example configuring outlook for sending email.) enter this value in the SMTP virutal server for smarthost.
Send ALL your email through a smarthost, which will be set to the ISP's mail server (what they tell people to use if for example configuring outlook for sending email.) enter this value in the SMTP virutal server for smarthost.
ASKER
I don't understand what you mean. How should I send all my email through a Smart Host? I have an Exchange Server and I connect to it via Microsoft Outlook. How do I tell Exchange to connect to a Smart Host and where can I find a Smart Host?
Thanks,
John
SOLUTION
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ASKER CERTIFIED SOLUTION
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Agreed
Simon do you have a second to look at this:
https://www.experts-exchange.com/questions/21794103/exchange-server-corruption-moved-to-new-mailbox-store.html
thanks
Simon do you have a second to look at this:
https://www.experts-exchange.com/questions/21794103/exchange-server-corruption-moved-to-new-mailbox-store.html
thanks
ASKER
Thank you both. I like both of your answers but I like the idea of creating a connector best. Thank you again.
Are you on residental DSL/Cable, so that you beleive the ISP will block outbound email? The recommendation to sent through your ISP's mail server is what that post is explaining.
link appears to be up and running