Multiple A Records for IMAP service

[Vijay Rajah]

Hello All,

I have a quick question.

I have 2 MX servers each with a Dovecot Instances (2.2.6). These 2 
Dovecot Instances are replicated by using Dsync... All works well.

The questions is, Can I have 2 A records for my imap.mydomain.tld? The 
Idea being, if for any reason, one of the Dovecot IMAP instances are 
unreachable, the client can connect to the other Instance. (this is 
purely a fail over scenario).

If it matters, The clients are Thunderbird, Android Native (default) 
Mail client, iOS Mail Client.

-Thanks in advance
Vijay