from_mail must be valid

pla_reminder

-#!/usr/bin/python3 -u   
+#!/usr/bin/python3 -u
 
 import requests
 import json
@@ -6,7 +6,10 @@ from datetime import datetime, timedelta
 
 db_url = "http://a73434.berlin.ptb.de:5984/vl_db/_design/share/_view/pla_date"
 relay_url = "http://a73434.berlin.ptb.de:55555"
-to_mail = "thomas.bock@ptb.de"
+
+to_mail = "vacuum.cal@ptb.de"
+from_mail = to_mail
+#to_mail = "thomas.bock@ptb.de"
 post_days = 20
 pre_days = 90
 
@@ -27,18 +30,24 @@ opening= {
 body_post = {
     'en': "your reservation of the time slot {schedule_date} for calibration is about to expire.\nWould you like to order this calibration?",
     'de' : "die Reservierung Ihres Kalibriertermins zum {schedule_date} läuft in Kürze ab.\nMöchten Sie diese Kalibrierung in Auftrag geben?"
-    }  
+    }
 
 body_pre = {
     'de': "wir haben einen Kalibriertermin für Sie reserviert. Im Anhang finden Sie ein entsprechendes Angebot.\nBitte schicken Sie uns Ihre Bestellung innerhalb der nächsten 15 Werktage.",
-    'en' : "we have reserved a time slot for your calibration. Please find attached the corresponding offer.\nPlease place your order within 15 working days. "
-    }   
+    'en' : "we have reserved a time slot for your calibration. Please find attached the corresponding offer.\nPlease place your order within 15 working days. "}
 
 closing  = {
     'en': "Best regards,",
     'de' : "Mit freundlichen Grüßen"
     }
 
+sign ="\n".join( [
+  "Dr. Matthias Bernien  Head of section   Fon: ++49-30-3481-7230",
+  "Ute Becker            Test leak         Fon: ++49-30-3481-7467",
+  "Thomas Bock           Ionisation gauge  Fon: ++49-30-3481-7354",
+  "Christian Buchmann    CDG, SRG          Fon: ++49-30-3481-7415",
+  "Beate Prußeit         Accounting        Fon: ++49-30-3481-7375",])
+
 subject_pre =  {
     'en': "Angebot zur Kalibrierung am {date} (zum Weiterleiten an {email})",
     'de' : "Offer for calibration at {date} (zum Weiterleiten an {email})"
@@ -46,14 +55,14 @@ subject_pre =  {
 
 subject_post =  {
     'en': "Ihre Kalibrierung am {date} (zum Weiterleiten an {email})",
-    'de' : "Your calibration at {date} (zum Weiterleiten an {email})"
+    'de' : "Your calibration at {schedule_datedate} (zum Weiterleiten an {email})"
     }
+
 date_post_days = datetime.now() - timedelta(days=post_days)
 ref_post_date = str(date_post_days).split(" ")[0]
 
 date_pre_days = datetime.now() + timedelta(days=pre_days)
 ref_pre_date = str(date_pre_days).split(" ")[0]
-
 req_post = requests.get("{url}?key=\"{key}\"".format(url=db_url, key=ref_post_date))
 req_pre = requests.get("{url}?key=\"{key}\"".format(url=db_url, key=ref_pre_date))
 
@@ -76,21 +85,21 @@ for pla in plannings:
         gender = contact.get("Gender", "none")
         email = contact.get("Email")
         mail_opening = opening[gender][lang].format(name=name)
-        
+
         if pla.get("match") == "pre":
-          mail_subject = subject_pre[lang].format(date=ref_pre_date, email=email)
+          mail_subject = subject_pre[lang].format(date=schedule_date, email=email)
           mail_body = body_pre[lang].format(schedule_date=schedule_date)
-        if pla.get("match") == "post":   
-          mail_subject = subject_post[lang].format(date=ref_post_date, email=email)
+        if pla.get("match") == "post":
+          mail_subject = subject_post[lang].format(date=schedule_date, email=email)
           mail_body = body_post[lang].format(schedule_date=schedule_date)
 
         mail_closing = closing[lang]
-        mail = "{}\n\n{}\n\n{}".format(mail_opening, mail_body,mail_closing)
-        task = {"Action":"EMAIL", 
-                "Host": "smtp-hub.bs.ptb.de", 
+        mail = "{}\n\n{}\n\n{}\n\n\n{}".format(mail_opening, mail_body, mail_closing, sign)
+        task = {"Action":"EMAIL",
+                "Host": "smtp-hub.bs.ptb.de",
                 "Subject": mail_subject,
-                "From": "<reminder@ptb.de>",
+                "From": "<{}>".format(from_mail),
                 "To": to_mail,
                 "Text": mail}
-        print(task)
-        #req = requests.post(relay_url, data=json.dumps(task))
+
+        req = requests.post(relay_url, data=json.dumps(task))