Server log files were evaluated after several users reported having troubles sending emails.
Approx. 90% of emails are being sent.
The remaining 10% contains following errors:
  • Email has no content
  • SMTP-server is not specified
  • Incorrect SMTP-server (e.g. smtp..gmail.com)
  • Wrong password
  • Password with special characters
  • Password length more than 16 characters (max. 16 characters)
  • E-mail address length more than 32 characters (max. 32 characters)
  • Wrong SMTP-port



If you having troubles sending an email:
  1. Check SMTP-server1
  2. Enter the correct port number1
  3. Re-enter your password
  4. Check email content
  5. Restart the ProfiLux (power off)


Gmail double authentification is not supported.

1You can find the right SMTP server and port number in following table. If your provider is not listed you can get the SMTP server and port number from your provider. Please consider that german providers use encryption for sending emails.



Provider SMTP-server Port number
Googlemail - Gmail smtp.gmail.com 465, 587
Outlook.com smtp.live.com 587
Office365.com smtp.office365.com 587
Yahoo Mail smtp.mail.yahoo.com 465
Yahoo Mail Plus plus.smtp.mail.yahoo.com 465
Yahoo UK smtp.mail.yahoo.co.uk 465
Yahoo Deutschland smtp.mail.yahoo.com 465
Yahoo AU/NZ smtp.mail.yahoo.com.au 465
O2online.de smtp.o2online.de, mail.o2online.de 465, 587
O2.uk smtp.o2.co.uk 25
AT&T smtp.att.yahoo.com 465
NTL @ntlworld.com smtp.ntlworld.com 465
BT Connect mail.btconnect.com 25
BT Openworld mail.btopenworld.com 25
BT Internet mail.btinternet.com 25
Orange smtp.orange.net 25
Orange.uk smtp.orange.co.uk 25
Wanadoo UK smtp.wanadoo.co.uk 25
Hotmail smtp.live.com 465
T-Online Deutschland securesmtp.t-online.de 587
1&1 (1and1) smtp.1and1.com 587
1&1 Deutschland smtp.1und1.de 587
Comcast smtp.comcast.net 587
Verizon outgoing.verizon.net 465
Verizon (Yahoo hosted) outgoing.yahoo.verizon.net 587
zoho Mail smtp.zoho.com 465
Mail.com smtp.mail.com 465
GMX.com mail.gmx.com 587
GMX.de mail.gmx.net 587
GMX.net mail.gmx.net 587
AOL Deutschland smtp.de.aol.com 587
AOL, AIM smtp.aim.com 587
Arcor mail.arcor.de 465
freenetMail mx.freenet.de 465, 587
iCloud Mail smtp.mail.me.com 587
mail.de smtp.mail.de 587
WEB.DE FreeMail smtp.web.de 587
Kabel Deutschland smtp.kabelmail.de 465
Unitymedia mail.unitybox.de 465, 587
Vodafone Deutschland smtp.vodafone.de 587