You received an MMS, but it expired on: 1970-01-01 07:59

[olyavi]

It's explained here:
https://wiki.mobian-project.org/doku.php?id=mms

You can edit those parameters in Chatty too, go to Preferences → Protocol Settings → SMS and MMS Settings → MMS Carrier Settings. However, editing /home/mobian/.mms/modemmanager/mms is more flexible.

Thanks for that. I had already set most of the available settings through Chatty, but I did add in a maximum attachment size. Now I'm not even getting the error message though, the MMS just doesn't arrive - but there may have been something else I did to cause that as I have been fiddling around trying different APNs and so forth.

Hello,
I had a similare issue with postmarketos, after put the good settings in chatty and modemmanager/mms, the phone was able to send and recive MMS.
But when I send a picture whit a size > 1Mb the MMS it doesn't work.

I try to change the value of the maximum attachement size but it doesn't change any things.
May be you should try to send a picture with low size ( > 1Mb)

MMS size by Carrier
https://support.bandwidth.com/hc/en-us/a...adhered-to-