Lars

Result with port 587: Unable to connect with STARTTLS: stream_socket_enable_crypto(): SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed When i use an external SMTP i...

... to rule out my local installation as the reason. i installed a docker-version an updated it to 1.15.0 same result. smtp is not working and was working

my Mailserver logs sys this: connect from vm-ubuntu.fritz.box[192.168.2.103] 2023-12-10T12:43:00+01:00 HHServer postfix/smtpd[31003]: SSL_accept error from vm-ubuntu.fritz.box[192.168.2.103]: -1 2023-12-10T12:43:00+01:00 HHServer postfix/smtpd[31003]: warning: TLS library problem: error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca:ssl/record/rec_layer_s3.c:1562:SSL alert number...

I use that SMTP-Server on a daily basis with Mail.app on macOS and Outlook on Windows. No problems, whatsoever.

yes, this is my common.php: ``` return [ 'components' => [ 'mailer' => [ 'transport' => [ 'streamOptions' => [ 'ssl' => [ 'allow_self_signed' => true, 'verify_peer' => false, 'verify_peer_name'...

If i use custom DSN with: `smtp://username:[email protected]:25?verify_peer=0` it works. If i don't use `verify_peer=0` it does not work. I cannot configure verify_peer=0 with SMTP setting, the accept self signed certificate...

Any chance this could be resolved? Thanks!