I cannot get mail merge to email work. i'm using windows 10 with yahoo bizmail. have copied my incoming and outgoing settings. When i test, i get the following error message at failed test.

[dix-bcm]

LibreOffice could not connect to the outgoing mail server. Check your system’s settings and the settings in LibreOffice. Check the server name, the port and the secure connections settings

<class ‘poplib.error_proto’>: -ERR EOF, traceback follows
C:\Program Files (x86)\LibreOffice 5\program\python-core-3.3.3\lib\poplib.py:121 in function _getline() [if not line: raise error_proto(’-ERR EOF’)]
C:\Program Files (x86)\LibreOffice 5\program\python-core-3.3.3\lib\poplib.py:137 in function _getresp() [resp, o = self._getline()]
C:\Program Files (x86)\LibreOffice 5\program\python-core-3.3.3\lib\poplib.py:93 in function init() [self.welcome = self._getresp()]
C:\Program Files (x86)\LibreOffice 5\program\mailmerge.py:405 in function connect() [self.server = poplib.POP3(server, port, timeout=tout)]