in message
The email address is valid and I can send emails via webmail.
Then the e-mail address you are using in Outlook is incorrect. Delete
the contact record and recreate it, or copy/paste the one that works
in the browser when using the webmail interface.
The person
receives emails happily from everyone else they are in contact with.
I have
been though outlook and checked things like the Junk mail serttings
Junk mail filter and most rules apply only to inbound e-mails, not to
outbound e-mails. It is possible you have rules defined that get
exercised against outbound e-mails.
but
cannot find a problem. I have tried to reply
If you reply to an e-mail (and do absolutely nothing to alter the
recipient's e-mail address) then the e-mail address used is the one
specified by the sender. So maybe the sender screwed up their own
e-mail address. Just as you can enter anything into the E-Mail and
Reply-To fields in the e-mail account that YOU define in Outlook, the
sender can do the same and this is manual entry. So maybe the e-mail
address you have recorded in Outlook is wrong and the one you use in
webmail is correct because YOU entered it rather than rely on what the
sender gave you.
to the address and type in the
complete address and neither work.
The original error notification that you showed is not from Outlook.
It is from your own sending e-mail server. So whether you use Outlook
or their webmail interface is irrelevant because *later* the SMTP
session between the sending and receiving mail hosts (which has
nothing to do with Outlook at that point) fails but only when the
original *data* given to the sending mail host was erroneous. So you
still have something misconfigured in Outlook regarding the *e-mail
address* of the recipient. Whether you use Outlook or the webmail
interface, that session is completely disconnected from the SMTP
session between the mail hosts.
So have you tried running Outlook in its safe mode ("outlook.exe
/safe") to ensure that you did not install an add-on that is screwing
up the behavior of Outlook? Have you tried disabling the e-mail
scanning function in your anti-virus software? If you run anti-spam
software, tried disabling it yet?
You could also try enabling the troubleshooting logging in Outlook (it
creates an %temp%\opm.log file). I don't have one to look at right
now. It is possible that you can see what is the e-mail address that
is specified in the RCPT-TO command since that is the client telling
the mail host as to whom is the recipient of the e-mail specified
later in the DATA command.
So far, you say the e-mail address works okay when using the webmail
interface but you get "no such account" when using Outlook. So the
conclusion is that you are NOT using the same e-mail address in
Outlook that you used in the webmail client.
