diff --git a/interface/web/admin/templates/server_config_mail_edit.htm b/interface/web/admin/templates/server_config_mail_edit.htm
index f5d98196e4576f615b456d5aa653e0623f806873..d6ebf1fd4d67db5c5aed27260ad7b47d6ac1de5a 100644
--- a/interface/web/admin/templates/server_config_mail_edit.htm
+++ b/interface/web/admin/templates/server_config_mail_edit.htm
@@ -65,11 +65,11 @@
 			</div>
       <div class="ctrlHolder">
       	<label for="mailbox_size_limit">{tmpl_var name='mailbox_size_limit_txt'}</label>
-        <input name="mailbox_size_limit" id="mailbox_size_limit" value="{tmpl_var name='mailbox_size_limit'}" size="10" maxlength="15" type="text" class="textInput formLengthLimit" />
+        <input name="mailbox_size_limit" id="mailbox_size_limit" value="{tmpl_var name='mailbox_size_limit'}" size="10" maxlength="15" type="text" class="textInput formLengthLimit" />&nbsp;MB
 			</div>
       <div class="ctrlHolder">
       	<label for="message_size_limit">{tmpl_var name='message_size_limit_txt'}</label>
-        <input name="message_size_limit" id="message_size_limit" value="{tmpl_var name='message_size_limit'}" size="10" maxlength="15" type="text" class="textInput formLengthLimit" />
+        <input name="message_size_limit" id="message_size_limit" value="{tmpl_var name='message_size_limit'}" size="10" maxlength="15" type="text" class="textInput formLengthLimit" />&mbsp;MB
 			</div>
     </fieldset>
 
diff --git a/interface/web/mail/templates/spamfilter_other_edit.htm b/interface/web/mail/templates/spamfilter_other_edit.htm
index 404067198daa2f6e86f192e0db47a1163eacb579..76889a6a948f3adc8dbfd143b072e62677ccf70c 100644
--- a/interface/web/mail/templates/spamfilter_other_edit.htm
+++ b/interface/web/mail/templates/spamfilter_other_edit.htm
@@ -61,7 +61,7 @@
 			</div>
       <div class="ctrlHolder">
       	<label for="message_size_limit">{tmpl_var name='message_size_limit_txt'}</label>
-        <input name="message_size_limit" id="message_size_limit" value="{tmpl_var name='message_size_limit'}" size="10" maxlength="255" type="text" class="textInput formLengthLimit" />
+        <input name="message_size_limit" id="message_size_limit" value="{tmpl_var name='message_size_limit'}" size="10" maxlength="255" type="text" class="textInput formLengthLimit" />&nbsp;Bytes
 			</div>
       <div class="ctrlHolder">
       	<label for="banned_rulenames">{tmpl_var name='banned_rulenames_txt'}</label>