A customer of mine recently said he got this message in Outlook:
The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was 'usr'. Subject 'fds', Account: 'acc', Server: 'mail.domain.com', Protocol: SMTP, Server Response: '501 <usr>: sender address must contain a domain', Port: 25, Secure(SSL): No, Server Error: 501, Error Number: 0x800CCC78
Now, I asked him to go into cPanel > Manage Webmail Accounts >
and click 'OUTLOOK AUTO-CONFIGURE' on his account, but he said he already did.
I've never, in my life, used Outlook, or any other
sort of Email Client except web-based, so what should I suggest?
He's a brand new customer, and very excited, and refused to use Neomail, Horde, or Squirrel
The message could not be sent because the server rejected the sender's e-mail address. The sender's e-mail address was 'usr'. Subject 'fds', Account: 'acc', Server: 'mail.domain.com', Protocol: SMTP, Server Response: '501 <usr>: sender address must contain a domain', Port: 25, Secure(SSL): No, Server Error: 501, Error Number: 0x800CCC78
Now, I asked him to go into cPanel > Manage Webmail Accounts >
and click 'OUTLOOK AUTO-CONFIGURE' on his account, but he said he already did.
I've never, in my life, used Outlook, or any other
sort of Email Client except web-based, so what should I suggest?
He's a brand new customer, and very excited, and refused to use Neomail, Horde, or Squirrel
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