Maillog message "do not try TLS with ..."

In the past several customers were confused about the following mail server log message:
... ruleset=try_tls, arg1=..., relay=..., reject=550 5.7.1 ... do not try TLS with ...
This message does not indicate an error. It appears whenever DEFENDO contacts a mail server which offers encrypted connections (TLS) but DEFENDO's configuration does not allow encryption. The log message only informs that the STARTTLS option will not be used. Mail delivery will continue unencrypted as usual.
You can enable encrypted connections to specific servers or even to all servers which offer it in the DEFENDO menu "Modules > Mail Server > TLS Encryption".

Secure

DEFENDO forces a collection of best-of-breed security modules like firewall, VPN, proxies, virus scanner and anti spam system to interact for one purpose:
To be protected from all online threats and unwanted contents like malicious code, spam and hacker attacks.

Flexible

Each IT scenario is different. The DEFENDO product family will adapt precisely to your demands.
DEFENDO applies for simple Internet connections of small companies, for headquarters / branch office WANs, as well as for complex multi-tiered firewall systems.

More good reasons

  • No backdoors
  • More than 20 years of Internet security experience
  • Award-winning product
  • Support by our development engineers
  • Reseller loyalty
  • Made in Germany