Port 465 and SSL deprecated, use 587 and TLS instead

Just SMTP → works with 587 TLS, but now I'm trying to find right set of modules/configurations to send HTML emails.

Port 465 isn't deprecated, in fact implicit TLS should be used for SMTP submission as it's more secure than connecting in plain text then optionally negotiating encryption.

Port 465 uses TLS, even though SSL is often mentioned in conjunction with that port.

To answer point 2 in the issue summary, it usually means that port isn't open on the server you're trying to connect to. Select TLS or no encryption and set the port to 587 to check.

@gennadiy, there are a number of SMTP related modules → .