after the migration from SF 7.3 to SF 8 we have just noticed, that the forms do not send e-mail notifications any more. There is nothing in the log files, as of SF as of the SMTP server. The SMTP configuration is trivial - localhost:25, no authentication, no SSL/TLS. According to the SMTP server log files, nothing even tries to connect the SMPT server. No errors / warnings / infos in the SF log files.
Have you any idea, what can it be? Our version of SF is 8.0.57.
P.S. It is interesting, that the version 7.3 is displayed in the back-ends left bottom corner. Administration -> Version & Licensing shows 8.0.5701.0.