How to add multiple MX record from different Email server

I am using 4 mail services. Let say my domain is example.com

1. Amazon SES for Transactional Email - (Only Sending not receiving - SMTP)
2. Zoho Mail for workmail (Webmail) - (Users email, both sending and receiving with SMTP & IMAP)
3. Mailchimp for promotional and newsletter
4. Modoboa installed on ubuntu (SMTP and IMAP)

@ MX 10 feedback-smtp.us-west-3.amazonses.com
@ MX 10 mx.zoho.in
@ MX 20 mx2.zoho.in
@ MX 50 mx.mailchimp.com
@ MX 10 mail.example.com.com
@ A  Mail 192.9.X.XX

Is this correct?.

First of all, MX specifies what servers other mail servers should connect to to deliver mail to your domain. You should not list mailchimp or amazon in there, as they are used just for sending mail from your domain.

Second, if you list two MX servers with same priority, mail will not be delivered to both. It will be delivered to one of them. If a mail server with a lower priority (floating to the top) is down, one further down the list will be used.

I'm not sure what you're attempting to do, but I would suggest that you read up on how e-mail works because your current setup seems fundamentally broken and confused, and likely to loose messages.

E-mail is one of the trickier services to host, as you have to ensure your messages is deliverable, you're not an open proxy, and adhere to standards such as SPF and DKIM. There's more to learn than what you need to smack up a web server.

Generally, you should probably not contemplate self-hosting your e-mail until you understand what you're doing. Based on what you write you do not understand e-mail or dns.