Select Page


Migrating emails to Plesk – Here’s how to do it

Migrating the entire domain is pretty easy with Plesk Migration tool.

At times, when customer changes only their email provider, there is a need to migrate only email contents.

Doing this selective migration may not be easy and often end up in broken email accounts.

At Bobcares, we help website owners to do selective migration as part of our Dedicated Support Services for Web Hosting providers.

Today, we’ll discuss the steps involved in migrating emails under the domain to a Plesk server.



The host could not be found – How to resolve Outlook error (0x800ccc0d) in Odin Plesk email accounts

The host could not be found – How to resolve Outlook error (0x800ccc0d) in Odin Plesk email accounts

Occasionally Odin Plesk customers report inability to send or receive emails reporting the following Outlook errors:

The host '' could not be found. Please verify that you have entered the server name correctly. Account: 'username', Server: '', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 11001, Error Number: 0x800CCC0D.


What causes “Sender verify failed” SMTP mail error, and how to resolve it in Parallels Plesk Postfix servers

SMTP error from remote mail server after RCPT TO:<>:
host []: 550-Verification failed for <>
550-The mail server could not deliver mail to The account ordomain may not exist, they may be blacklisted, or missing the proper dns entries.
550 Sender verify failed

If you are a Parallels Plesk web host, you would recognize this as one of the common errors reported by your customers.

Sender verify failed can be caused by issues ranging from improper file permissions to RFC non-compliance. Engineers at Bobcares help desk support services collect detailed information regarding the error through log analysis and engaging the customer. The following are the few of the common causes for this error. (more…)

Fix “550 Access denied in Parallels Plesk Postfix mail servers

The mail user reports the error:

Task – Sending reported error (0x800CCC78): ‘Cannot send the 
message. Verify the email address in your account properties. The server 
responded: 550 Access denied – Invalid HELO name (See RFC2821

Corresponding entry in Postfix logs say:

2014-09-12 12:19:45 [] rejected MAIL : 
Access denied - Invalid HELO name (See RFC2821

At Bobcares help desk support services, this is a common error we see in Parallels Plesk shared hosting servers. Strict anti-spam rules or lack of SMTP authentication usually cause this error. Given below are a few scenarios we’ve encountered, and the solutions we provided for them. (more…)