Does your organization have a witty catchphrase or slogan? If so, use that to your advantage. Here is one that could be tailored towards a custom software company:
Not everyone will observe the same holidays, and not every business or even member of your team will be around at the same time or even days. It is also completely possible that your business will stay open, but adjust operating hours. Either way, recording a personalized holiday greeting for your business can go a long way in improving your customer’s experience.

Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
These tips will guarantee that you make a great impression and maybe even get someone to leave a message or two.