Differences

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--- public:emai:geninfo [2017-02-02 14:55] – created vesely
+++ public:emai:geninfo [2020-11-02 12:37] – vesely
@@ Line 1: / Line 1: @@
-===== Email at CERGE-EI in general =====
+====== Email at CERGE-EI in general ======
-==== Email Services Limitations ====
+===== Email Services Limitations =====
-** Amount of emails sent per hour for each user is limited to certain number
+==== Amount of emails sent per hour for each user is limited to certain level ====
-It is general limitation and cannot be changed for individuals. There are serious reasons to limit this because of security reasons and because of keeping general reputation score of our site high (so your regular emails will be easily accepted by other parties)
+Current level is about 100 email sent per hour, which should be enough for regular email use.
+It is a general security limitation and cannot be changed for individuals unfortunately.
+There are serious objective reasons to limit this mostly because of security reasons and to keep general reputation score of our CERGE-EI site positive (so your regular emails will be well accepted by the other parties in the world)
+Anyway, regular email system is not intended for mass mail services because it counts against the SPAM score and REPUTATION of the sit as a whole.
+SPAM filters all around the world are becoming more strict every day. It is easy now to be on GRAYLIST or BLACKLIST and hard to get back from it…
+=== Possible workaround ===
+You must divide your recipients amount into smaller packs and sent them in more batches sent each hour…
+==== Maximal size of Email Message ====
+=== Emails from/to CERGE-EI ===
+Maximal size of email message including attachments is 10 MB
+=== Emails sent internaly ===
+Maximal size of email message including attachments is 20 MB
+==== Attachment filtering ====
+Some attachments are <font inherit/inherit;;#d35400;;inherit>**not allowed**</font>, especially:
+  * **Executable files**  (binary executables, executable scripts, documents containing macro, etc.).
+  * **Encrypted archives**  (like ZIP files).
+These files are usualy put into quarantine and user later gets digest message about quarantined emails together with link to the quarantine area.