Add imap. and smtp. to all newly created WHM domains

WHM, by default, create a mail. DOT domain record for all new domains. Hurah! Seems like the industry is liking this idea and I see it working in some autoconfig / autodisover wizards. However, Samsung phone email clients and a bunch of other email clients do not support autoconfig / autodiscover and are stuck on these prefixes: imap. DOT domain smtp. DOT domain So my question is how to update the universal template for all new domains? For extra bonus points, how to add a record for all existing domains? I recon I'll take around 5% less calls every month by doing this.