MAINT: use send_mail implementation of helper module

src/caosadvancedtools/crawler.py

@@ -56,6 +56,7 @@ from .datainconsistency import DataInconsistencyError
 from .datamodel_problems import DataModelProblems
 from .guard import RETRIEVE, ProhibitedException
 from .guard import global_guard as guard
+from .serverside.helper import send_mail as main_send_mail
 from .suppressKnown import SuppressKnown
 
 logger = logging.getLogger(__name__)
@@ -500,7 +501,6 @@ carefully and if the changes are ok, click on the following link:
         """.format(url=caosdb_config["Connection"]["url"],
                    filename=filename,
                    changes="\n".join(changes))
-        sendmail = caosdb_config["Misc"]["sendmail"]
         try:
             fro = caosdb_config["advancedtools"]["crawler.from_mail"]
             to = caosdb_config["advancedtools"]["crawler.to_mail"]
@@ -510,8 +510,11 @@ carefully and if the changes are ok, click on the following link:
                          "'from_mail' and 'to_mail'.")
             return
 
-        p = subprocess.Popen([sendmail, "-f", fro, to], stdin=subprocess.PIPE)
-        p.communicate(input=text.encode())
+        main_send_mail(
+            from_addr=fro,
+            to=to,
+            subject="Crawler Update",
+            body=text)
 
     def push_identifiables_to_CaosDB(self, cfood):
         """