Today we replaced an old Instagate Ex with a new Sonicwall TZ-190 and we are having problems receiving E-mails. We are currently running an exchange server on SBS 2003 and everything such as OWA or surfing the Internet works just fine.
When setting up the Sonicwall I used the Wizard to create a public server on port 25 that was supposed to move traffice from the WAN to the exchange server, however only sending is working. I can telnet to the SMTP server inside the domain, just not through the Sonicwall. When I try telnet through the sonicwall I get a flashing prompt and no error message.
Latest firmware has been pushed into the Sonicwall. Any ideas anyone?
Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.
I found an issue or “bug” in the SonicOS platform (the firmware controlling SonicWALL security appliances) that has to do with renaming Default Service Objects, which then causes a portion of the system to become uncontrollable and unstable.
When you’re making plans to join the modern business race, you should analyze various details that may affect your results. Nowadays, millions of businesses are trying to grow into established and appreciated professional enterprises.
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online.
The email signature template has been downloaded from:
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210 (2 * 3 * 5 * 7) or 2310 (2 * 3 * 5 * 7 * 11).
The larger templa…