• Our team is looking to connect with folks who use email services provided by Plesk, or a premium service. If you'd like to be part of the discovery process and share your experiences, we invite you to complete this short screening survey. If your responses match the persona we are looking for, you'll receive a link to schedule a call at your convenience. We look forward to hearing from you!
  • The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

Issue Result: FAILED, code 3015: Failed to read from socket. >SSL negotiation failed, code 1: SSL module internal error. error:1409443E:SSL routines:ssl3_re

fec19777

Basic Pleskian
I setup email with Plesk on my AlmaLinux 9 but the smtp.
The webmail is working perfectly and the messages are been delivered but the smtp does not connect.
Below is the screenshoot.
 
I am just curious to know for which purpose you trying to use Gamamdyne mailer? I your previous topic you mentioned that you wanted to mail hundreds of thousands of addresses. Did those people opt-in for your mailing?
 
Just so you know, not every cloud and server providers allows their networks to be used for sending out massive emails within a specific time period and could possibly blocked or even ban you off their platform so you might want to review their terms to make sure you do send massive emails out for email marketing.

And, to be honest, if you wanting to do this legally and by the books, I would recommend using a third party email marketing service such as mailchimp, sendgrid, etc., who is set up to work with email providers to make sure your emails actually gets through, people who opts out actually gets removed from your marketing, etc.
 
Well if you read through the error it basically states it can't verify the SSL. So few things for you to make sure of:

1) Make sure you're SSL covers mail services.
2) Make sure your client is even configured properly.
3) Make sure you have proper ports open.

But, really, you should make sure the hosting provider you're using is OK with you sending out mass emails before you attempt to.
 
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