How do I get MMS working on Nexus 5 with Straight Talk?
I finally hit upon APN settings which did the trick for me.


APN Name: STRAIGHT_TALK
APN: tfdata
Port: 80
Username: not set
Password: not set
Server: not set
MMSC: http://mms-tf.net
MMS Proxy: 66.209.11.33
MMS Port: 80
MCC: 310
MNC: 410
Auth Type: none
APN Type: default,supl,mms,hipri,agps,fota,dun,entitle