It's better to get married in person for such a big thing! It is impolite to make an announcement in the office, which also shows that you lack sincerity. Because it costs money for others to attend your wedding, we have to do it ourselves. On the one hand, you can exchange feelings, on the other hand, you can sincerely invite others, so that others will feel more comfortable!

Do things properly and beautifully, don't save trouble, after all, we are adults, and try to choose a safe and mature way to implement them.

Just a natural tone. For example, ask each other how they are doing recently, how busy they are at work, and say it's been a long time. Then tell him you're married and hope he can come! In this way, the other party will feel very close and will not be as disgusted as seeing the announcement.