Find provider by host

app/src/main/java/eu/faircode/email/EmailProvider.java

@@ -333,6 +333,17 @@ public class EmailProvider implements Parcelable {
         throw new FileNotFoundException("provider id=" + id);
     }
 
+    static EmailProvider getProviderByHost(Context context, @NonNull String host) {
+        for (EmailProvider provider : loadProfiles(context)) {
+            if (provider.imap != null && host.equals(provider.imap.host))
+                return provider;
+            if (provider.smtp != null && host.equals(provider.smtp.host))
+                return provider;
+        }
+
+        return null;
+    }
+
     static List<EmailProvider> getProviders(Context context) {
         List<EmailProvider> result = new ArrayList<>();
         for (EmailProvider provider : loadProfiles(context))

app/src/main/java/eu/faircode/email/EmailService.java

@@ -432,14 +432,15 @@ public class EmailService implements AutoCloseable {
             }
 
             boolean strict = ssl_harden_strict;
-            if (strict && provider != null)
-                try {
-                    EmailProvider p = EmailProvider.getProvider(context, provider);
-                    if ("1.2".equals(p.maxtls)) {
+            if (strict)
+                if ("pop3".equals(protocol) || "pop3s".equals(protocol))
+                    strict = false;
+                else {
+                    EmailProvider p = EmailProvider.getProviderByHost(context, host);
+                    if (p != null && "1.2".equals(p.maxtls)) {
                         strict = false;
                         Log.i(p.name + " maxtls=" + p.maxtls);
                     }
-                } catch (FileNotFoundException ignored) {
                 }
 
             factory = new SSLSocketFactoryService(host, insecure, ssl_harden, strict, cert_strict, key, chain, fingerprint);