Dear Sir/madam Greetings. I have migrated Koha version 19.05 to Koha 22.05.08 in Ubuntu 22.04. An in-built SMTP server is enabled to send emails to the patron. The system sends the welcome email after new patron registration but it does not send the chekins and checkout email. it is showing the notice is pending. Please help me to figure it out. Thank you in advance. -- Best regards Dr. Shankar Reddy Kolle Deputy Librarian Prof. Ram Dayal Munda Central Library Indira Gandhi National Tribal University (Central University), Lalpur, Amarkantak, Anuppur Dist, Madhya Pradesh -484887, India Phone No 09742749018 https://www.scopus.com/authid/detail.uri?authorId=56963777200 https://www.researchgate.net/profile/Shankar_Reddy_Kolle https://scholar.google.co.in/citations?user=Msk5hT8AAAAJ&hl=en