correos

Incoming Mail (IMAP)

  • Server hostname:
    • United States: mail.us.opalstack.com
    • Germany: mail.de.opalstack.com
  • Username: your mail user’s name
  • Password: your mail user’s password
  • Authentication type: Normal password (some clients show this as just «Password»)
  • Secure port – SSL: 993

Incoming Mail (POP3)

  • Server hostname:
    • United States: mail.us.opalstack.com
    • Germany: mail.de.opalstack.com
  • Username: your mail user’s name
  • Password: your mail user’s password
  • Authentication type: Normal password (some clients show this as just «Password»)
  • Secure port – SSL: 995

Outgoing Mail (SMTP)

  • Server hostname:
    • United States: smtp.us.opalstack.com
    • Germany: smtp.de.opalstack.com
  • Username: your mail user’s name
  • Password: your mail user’s password
  • Authentication type: Normal password (some clients show this as just «Password»)
  • Secure port – SSL: 465
  • Secure port – TLS: 587
  • Sender address: domain must meet the requirements detailed in Outgoing Mail Domains