Unable to migrate domain

Symptoms

• Migration of a domain fails with the following error:

  PLESK_INFO: Failed to deploy subscription 'example.com'
  Migration for that subscription is considered completely failed. No further actions are performed for it. Migration tools tried to perform operation in 3 attempts.
  ----------------------------------------------------------------------------
  Attempt #1 failed with the following error:
  Unable to create subscription 'example.com'. Command LANG=en_US.UTF-8 ALLOW_WEAK_PASSWORDS=1 PLESK_RESTORE_MODE=1 subscription --create example.com -hosting true -hst_type phys -login user -passwd ***hidden*** -ip 203.0.113.2 -do-not-apply-skeleton -notify false -owner admin -guid E079AF1B-AC8F-4AC3-8A30-8D97E8AD7963 -creation-date 2012-07-16 -ignore-nonexistent-options failed with exit code 1:
  stdout:
  stderr: An error occurred during domain creation: mailmng failed: SOAP ERROR: GetDomainDefaults() failed: Error code 0x803d0010. Error message: There was an error communicating with the endpoint at 'http://127.0.0.1:8080/Services/svcDomainAdmin.asmx'.
  A connection with the server could not be established
  at (WebService::Error::checkResult line 106)
  at newDomain(example.com)(SmarterMail::Local::Provider::newDomain line 194)
  at execute console command --add-domain(vconsoleapp::start line 122)
  at execute "C:\Program Files (x86)\Parallels\Plesk\admin\bin\mailmng" --add-domain "--domain-name=example.com"(vconsoleapp::run line 139) (Error code 1)

• SmarterMail is marked as installed, but not configured at Plesk > Tools & Settings > Server Components > Mail Server

Cause

Plesk cannot connect to SmarterMail due to missing credentials.

Resolution

1. Connect to the server via RDP.
2. Navigate to Plesk > Tools & Settings > Server Components > Mail Server > SmarterMail Server (not configured) and enter valid Login and Password.
3. Remove partially migrated domains from the destination server and re-migrate them.

Additional information

Unable to remove customer in Plesk: Unable to load object of type Mailname with id=YYY: Unable create domain with ID "XXX"

Cannot create a customer or new domain in Plesk: SOAP ERROR: GetDomainDefaults() failed: Error code 0x803d0010. Error message: There was an error communicating with the endpoint