Bug ID: 231046
Summary: mail/ssmtp 2.64 doesnt send final ack - delays mail
server with hanging LAST_ACT on FreeBSD11.2S
Product: Ports & Packages
Severity: Affects Only Me
Component: Individual Port(s)
Assignee: [hidden email] Reporter: [hidden email] CC: [hidden email] CC: [hidden email] Flags: maintainer-feedback?([hidden email])
Unsure if this is an implementation issue or something around traffic flow.
Multiple messages being sent with ssmtp. When the server starts rejecting
messages due to connection rate setting, there are pending LAST_ACKs; which
ssmtp should ack before terminating. Instead ssmtp just stops.
The problem is that sendmail wont respond to new connections until the LAST_ACK
Workaround - increase number of connections to that particular port 2525 which
is only for administrative email. Aside: there are multiple jails transmitting
to the sendmail (latest version) jail via lo0. It just appears to be coming
over its "localhost" addr.