Hi, Dovecot 2.4 was released today. The binary packages and docker images they’ve built have L1 support/silver level support, if one enables mail_utf8_extensions in the configuration file. It’s disabled by default in this version. I timidly guess that if they don’t get many bug reports related to mail_utf8_extensions, then a future version will enable it by default. I am happy for now: Progress is progress, more is luxury. The open source servers with support are now Dovecot<https://www.dovecot.org/>, Courier<https://www.courier-mta.org/imap/>, Wild Duck<https://wildduck.email/> and Stalwart<https://stalw.art/> IIRC. The ones missing support are Cyrus, those that build on Cyrus (mostly commercial/integrated offers) and a few rather minor servers. I have a compliant version of Cyrus running and have passed the changes to the head maintainer. He and I will meet in March, so I feel good about progress on that front. At some point in the next six months I think it will be simple for mail client authors to test EAI support, because at least one server in their testing setup will already have support. -- Arnt Gulbrandsen UA Tech Sr Mgr +32 492 374706