Hello all
After further investigation. It seems the problem was actually related to ZOHO changing it's IMAP service to not allow concurrent services.  Adding  PipelineDepth 1 fixed my problem. Please disregard.

Dylan


On Wed Aug 28, 2024 at 9:57 AM AEST, Dylan D'silva wrote:
> Hello all,
>
> Since isync 1.5 I've been getting this broken pipe.
> Socket error: secure write to imappro.zoho.com (204.141.43.131:993): error:02FFF020:system library:func(4095):Broken pipe
> mbsync -Dn zoho > fail.log
> shows no errors. The socket error doesn't write to fail.log only to stdout.
>
> Looking into this I see the same error with Althttpd see (https://www.sqlite.org/althttpd/forumpost/1e536f9fb0bf5310)
> Which turned out to caused by a make difference between OpenBSD and Linux.
>
> regards
> Dylan