Tested on an arm netbook. No problems sending mails with it. mail-mta/msmtp-1.6.2::gentoo was built with the following: USE="(arm) mta ssl -doc -gnutls -idn -libsecret -nls -sasl -vim-syntax" CFLAGS="-O2 -pipe -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard" Reproducible: Always
ping. Still using it (now version 1.6.3) without problems.
fixed in both 1.6.3 1.6.4 https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5be2d5f958af6ce635a6ca0fdfe0b887d42539df