[Dovecot] Plain-Text & CRAM-MD5

Hi there,

I'm currently running my auth against CRAM-MD5 only. But I face problems with customers who apparently have smart phones which ONLY support plain-text authentification ;( Bad - I know, but what should I do ... ;/

So my question now is: Is it possible to run CRAM-MD5 as well as Plain-Text auth together with Postfix if Postfix is using Dovecot's SASL auth service? Cause that's how my setup currently looks like - except the plain-text auth ...

Thanks & Regards