I'd like to ask whether my writing is correct or not; I'm trying to write a
formal email following up my previous email in regard of topic X. The way I
write it is like this :

Xデモ​依頼​について,メールをお送りします.

I was wondering if this is the correct way to say it - it make sense in
English but seems awkward in Japanese.

In general this is what I'm trying to write :

Xデモ​依頼​について,メールをお送りします. ​突然のメール失礼いたします。

​先日​​送らせていただいたメールですが,ご確認いただけましたでしょうか​​。​

Xに関連するご質問がございましたらお気軽に​​​​お問い合わせください​。

お返事をお待ちしております.

Any suggestions to improve my awkward email is very much appreciated,
thankyou!
CC BY-SA 3.0
2017-04-10T13:15:28.283
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2017-04-12T02:58:57.003
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question
grammar email
How to write 'I'm emailing you in regard of [topic]'
You can use:

Watashi ha [topic] ni tsuite meeru wo kaiteimasu. (私は[topic]についてメールを書いています)
CC BY-SA 3.0
2017-04-12T01:23:27.853
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2017-04-12T01:23:27.853
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answer
You can omit "突然のメール失礼いたします。". This sentence is normally used when you have
never sent the email before.

With regard to the first sentence, Xデモ​依頼 **の件​に** ついてメールをお送り **しています** 。
would sound more natural.

All the other parts are perfect.
CC BY-SA 3.0
2017-04-12T02:48:11.220
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2017-04-12T02:58:57.003
2017-04-12T02:58:57.003
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answer