"Thank you very much! The mail man folded the ... " (more)envelope to get it through the slot. You may want to write "Do Not Bend" next time. Fortunately it was not damaged. "
"Thank you. I write it on the large paintings e ... " (more)nvelopes. But I didn't think about slots for the medium size envelopes. I was thinking mail box. I am happy it didn't get damaged. I pack as if it might go through a storm because I know the USPS can be tough on mail."