[Mono-list] Sending email via gmx in C#

Robert Jordan robertj at gmx.net
Wed Feb 17 06:28:11 EST 2010

On 17.02.2010 12:04, pfj wrote:
> This should work happily, but I always get an error thrown -
> "Mailbox unavailable. The server response was 5.7.0 Sender address does not
> belong to logged in user {mp-eu001}"
> According to the docs for gmx, I'm doing this correctly.
> Is my code wrong or is there something else I need to do for gmx to play
> ball?

GMX does not allow sending of mails with a sender address !=
the gmx email address, unless you're a paying customer.

So you better assure that 'un = uname + "@" + address;'
is actually building a valid gmx e-mail address matching
the account you're sending mails from.


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