After a successful installation of Citadel in a Raspberry Pi i was ready to use it as my main mail server at home. So i added the four names of our family. Everything works fine for these 4 users + the admin.
Now the problem: i wanted to add a sixth user for mail list-, advertising- etc. emails.
To add a 6th user wasn’t a problem.
To sent an email (within de Citadel web interface) works fine as well.
But to SENT a mail TO this 6th email address is not possible. Not even with an email address and an email client outside the home environment. Believe me, i tried and checked everything more then twice!! But i still receive 550 error messages directly after pushing the send button.
The sixth user is permitted to send internet mail and is an #4 Network user, just like the other ’normal’ users.
Is there a limitation in Citadel on an Raspberry Pi for a maximum of 5 users???
Thanks in advance for any tip, which solve this problem: