I am looking to test some newsletter emails that I have deigned on different email platforms (outlook, gmail, aol...)
Is there anything besides emailonacid and litmus that I can plug my code in and see how it looks on different email clients? I am not wanting to pay a monthly fee just to check 2 a month.
Email on Acid does do pay as you go. It's still a little pricey and you soon run out of credits f you have a lot of bugs to solve but I have used it in the past.