Matthias,
thank you for quick response. I should specify that this happens on portal dotnetnuke.com – the SMTP settings should be ok, isn’t it?
Next, this user is Store Project leader on dotnetnuke.com – where can be he listed as Junk-Mailer? May be stupid question, but I don’t use forum module, for that reason don’t known module settings.
I am sure he is not filtered by my mail server or mail client, I have my own mail server and I am the admin.
If the last possibility is the case (he didn’t activate the e-mails in the forum Admin settings) can you help Gilles Le Pigocher with this setting or should I forward this information to him?