starttls

I want to advertise the submission port (SMTP with STARTTLS and authentication, port 587) instead of SMTP via SSL (port 465). Reason: port 587 is the standard, port 465 is not RFC compliant. in /usr/local/psa/admin/conf/panel.ini I put this [mail] clientConfig.incomingServer="mail.<domain>"...

I had a domain tested for mail security and here it says that it failed. Where do i start to troubleshoot this? The mail server has letsencrypt SSL to 'secure the webmail' enabled. But i don't see where i can configure the STARTTLS in the Plesk GUI. Has anyone ever encountered this before?

Hello everyone! this is my first post, try my best to inform you about my problem.... I added a new domain for my client yesterday, added a Lets Encrypt wildcard certificate, everythin is ok. after adding new mail accounts i wanted to test autodiscover function with thunderbird (enabled...

I configured my server to have "mail.serverhostname.tls" as secured mail server and works as expected. However, I have not succeeded configuring my domains to have "mail.mydomain.tls" also secured. The problem is that I need to migrate a lot of customer sites and domains from a non-plesk server...

Until recently I host my website on a shared hosting but because of the limitations that I encountered, I decided last December to switch to a VPS with Plesk onyx but I can not-send email to an external address. First I got a 250 SMTP error, then another and now I get the error message: SMTP...