Sipariş Tamamlama Aşamasında mail hatası

Merhabalar,

Siparişi tamamla dediğimde aşağıdaki hatayı alıyorum. Nedeni konusunda yardımcı olabilecek var mı ? Mail bilgileri doğru SMTP bilgileri doğru.

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
OK
<br />
<b>Fatal error</b>: Uncaught Exception: Error: MAIL FROM not accepted from server! in /home/yenivadi/storage/modification/system/library/mail/smtp.php:258
Stack trace:
#0 /home/yenivadi/storage/modification/system/library/mail.php(202): Mail\Smtp-&gt;send()
#1 /home/yenivadi/storage/modification/catalog/controller/mail/order.php(693): Mail-&gt;send()
#2 /home/yenivadi/storage/modification/catalog/controller/mail/order.php(34): ControllerMailOrder-&gt;add(Array, '1', 'Banka Havalesi/...', true)
#3 /home/yenivadi/public_html/vqmod/vqcache/vq2-_home_yenivadi_storage_modification_system_engine_action.php(79): ControllerMailOrder-&gt;index('checkout/order/...', Array)
#4 /home/yenivadi/public_html/system/engine/event.php(62): Action-&gt;execute(Object(Registry), Array)
#5 /home/yenivadi/public_html/vqmod/vqcache/vq2-_home_yenivadi_storage_modification_system_engine_loader.php(229): Event-&gt;trigger('model/checkout/...', Array)
#6 /home/yenivadi/public_html/system/engine/proxy.php(47): Loader-&gt;{closure}(Array, Array)
#7 /home/yenivadi/public_html/cata in <b>/home/yenivadi/storage/modification/system/library/mail/smtp.php</b> on line <b>258</b><br />

Merhaba,
Mail sunucunuzla ilgili bir durum. Çeşitli çözümlere bakabilirsiniz.
https://www.google.com/search?q=Uncaugh ... rom+server!