Since 1.6.4 landed in ports I've noticed a few oddities when using mu4e, one that was particularly breaking was saving attachments. After isolating issues, it looks like this was fixed in 1.6.6 with: https://github.com/djcb/mu/issues/2116 I tested compiling the newer version and it does fix the issue, have not been able to test building the port in poudriere since that'd require building 200 ports, hopefully documenting this and the patch proposal can help next person finish solving this.
Created attachment 229544 [details] mail/mu: update to 1.6.10
Please close: commit f0e65866639fe7d4f030cddda98a48a2b8088d54 Author: Hiroki Sato Date: Thu May 5 22:14:02 2022 +0900 mail/mu{,4e}: update to 1.6.10