As I have good experience about Newsletter/mailer development, I like to encash opportunities to give best service to my clients as per their needs. I can work both on responsive and non-responsive templates. I also work on Mail-Chimp platform for the development of newsletters and prefer to right my own code. I generally prefer simple templates to be developed with the help of Mail-Chimp so that they can be easy for responsiveness.
I always prefer standard width for the templates so that the look and feel is perfect. According to my template structure I always right the best code for strong structure for non distortion in multiple platforms like Outlook Application, Outlook web Application, G-mail and Yahoo etc. I have my own coding standards for the best output.
There are some things which can be fixed in some tricky way. For instance : when we add a date format in newsletter then G-mail automatically creates Calender option in its inbox field. So in that case we need to apply some tricky code to avoid this.
A newsletter always has a challenge of Outlook. I always notice that most of the background shades are not compatible for Outlook. So to avoid this I have ample skills.
After development I always test my layout and code for validation through validation tool. On the other hand I always prefer to verify code for contrast issues.