jakartaee/mail-api

View on GitHub

Jakarta Mail Specification project

Stars: 285
Forks: 109
Open beginner issues: 0
Indexed issues: 93
Avg merge: 15h 19m
Merged PRs (30d): 1

Dominant language: Java
License: No license data
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

Open All

93 open issues indexed

Slow performance of MimeUtility Open

jakartaee/mail-api#861 · 1 assignee · Opened Aug 24, 2026
Improve JavaDoc Session.getInstance(Properties, Authenticator) Open

bug

jakartaee/mail-api#831 · 1 comment · 1 assignee · Opened Apr 1, 2026
MimeMultipart.parse() drops blank preamble lines, breaks S/MIME after saveChanges() Open

Difficulty 2/5 1-3 hours Newbie friendliness 65/100

jakartaee/mail-api#825 · Opened Feb 11, 2026
Add a Convenient CDI Bean to Send Email Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

jakartaee/mail-api#822 · 1 comment · Opened Dec 9, 2025
Inject MailSession with CDI Inject Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

jakartaee/mail-api#821 · Opened Dec 9, 2025
Default MailDateFormat pattern might not be compatible with RFC 2822? Open

Difficulty 2/5 1-3 hours Newbie friendliness 58/100

jakartaee/mail-api#820 · 8 comments · Opened Dec 7, 2025
Custom mail providers distributed under META-INF/javamail.properties are no longer loaded with Jakarta Mail 2.1.5 Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jakartaee/mail-api#812 · 4 comments · Opened Sep 24, 2025
Mail 2.2 Milestone 1 Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

jakartaee/mail-api#809 · Opened Sep 19, 2025
Use System.Logger instead of java.util.logging.Logger Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

jakartaee/mail-api#806 · Opened Sep 19, 2025
MimeUtility.decodeText() incorrectly decodes base64/utf8 atttachment file name divided into two parts with Chinese characters Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

jakartaee/mail-api#751 · 4 comments · Opened Apr 10, 2025
"NO EXAMINE Unsafe Login" When folder reopen Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#750 · Opened Apr 9, 2025
InternetAddress does not ignore comments in angled address spec Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jakartaee/mail-api#749 · Opened Apr 8, 2025
How does one get access to the actual keyset for the extensions hashmap, only documented methods are getExtensionParameter or supportsExtension? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

jakartaee/mail-api#748 · 2 comments · Opened Apr 7, 2025
InternetAddress validation is not conforming to RFC822 Open

duplicate TCK

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

jakartaee/mail-api#747 · 1 comment · Opened Mar 28, 2025
java.lang.NumberFormatException: For input string: "CAPABILITY" is being thrown when try to connect imap store Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#743 · 1 comment · Opened Dec 27, 2024
pom.xml states EDL-1.0 as license but there seems to be no other information on this license in the code/package Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#742 · Opened Dec 10, 2024
Customizable SPN Service Class for GSSAPI Authentication Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 42/100

jakartaee/mail-api#740 · Opened Oct 15, 2024
[BUG] POP3, Email is deleted from the server when calling any function on MimeMultipart Object, even when READ_ONLY is set on folder Open

jakartaee/mail-api#739 · 1 comment · 4 reactions · 1 assignee · Opened Sep 27, 2024
EventQueue should be terminated only by its owner Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

jakartaee/mail-api#735 · 1 comment · Opened Aug 9, 2024
Possible ConcurrentModificationException in jakarta.mail.internet.ParameterList Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

jakartaee/mail-api#734 · Opened Jul 11, 2024
Message-ID Open

Component: internet enhancement

jakartaee/mail-api#728 · 4 comments · 1 assignee · Opened Apr 11, 2024
Tls parameters in imap/smpt sessions Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

jakartaee/mail-api#724 · 3 comments · Opened Mar 14, 2024
Error decoding a string with Cyrillic characters to search an e-mail by subject via IMAP protocol Open

bug duplicate

Difficulty 4/5 3-5 days Newbie friendliness 20/100

jakartaee/mail-api#717 · 9 comments · Opened Mar 4, 2024
Attachement filename is ignored[2023July03] Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#693 · Opened Jul 3, 2023
ParameterList fails to parse filename from Content-Disposition header encoded in UTF-8 with Q encoding Open

invalid question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#687 · 2 comments · Opened May 10, 2023
envelope parse Invaild symbol Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#669 · Opened Apr 21, 2023
setPeek(true) is not honored when getting an inner imap message part Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#666 · Opened Mar 31, 2023
jakarta.mail-api is not a Multi Release JAR Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#660 · 5 comments · Opened Feb 6, 2023
Remove throws MessagingException on jakarta.mail.internet.MimeMessage addHeader/removeHeader functions Open

Component: internet enhancement

jakartaee/mail-api#640 · 1 comment · 1 reaction · 1 assignee · Opened Nov 9, 2022
Drop Applet from the spec Open

good first issue

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#626 · Opened Oct 19, 2022
Integrating jakarta-mail into OSS-Fuzz Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

jakartaee/mail-api#620 · Opened Sep 14, 2022
Can't support UTF-8 caracters in name Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

jakartaee/mail-api#617 · 2 comments · Opened Aug 24, 2022
Authentication issues trying to access POP mailbox Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

jakartaee/mail-api#614 · 2 comments · Opened Jul 20, 2022
SharedByteArrayInputStream instead mutipart with mail.pop3.forgettopheaders=true Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#613 · 4 comments · Opened Jul 15, 2022
Invalid Javadoc links to https://javaee.github.io/jakartamail/... Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

jakartaee/mail-api#612 · 1 comment · 1 reaction · Opened Jul 9, 2022
Can you support the OpenHarmony JavaScript version? Open

question

Difficulty 5/5 Over a week Newbie friendliness 20/100

jakartaee/mail-api#608 · 1 comment · Opened Jun 23, 2022
Duplicated Message-ID Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#595 · 2 comments · Opened Feb 5, 2022
Error in check for hexadecimal numbers Open

bug

Difficulty 1/5 Under an hour Newbie friendliness 65/100

jakartaee/mail-api#592 · Opened Jan 4, 2022
Roadmap for jakarta.mail 1.6.x series Open

Difficulty 1/5 Under an hour Newbie friendliness 25/100

jakartaee/mail-api#591 · 1 comment · Opened Dec 30, 2021
move from MailDateFormat (not thread safe) to DateTimeFormatter Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#590 · 2 comments · Opened Nov 24, 2021
Improve support for Email Address Internationalization (EAI) Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 58/100

jakartaee/mail-api#589 · 8 comments · Opened Nov 12, 2021
Error parsing email attachment name Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

jakartaee/mail-api#586 · 1 comment · Opened Oct 29, 2021
Support Refresh token and Client Credentials/Service Account/Custom token Support for OAuth2 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

jakartaee/mail-api#585 · Opened Oct 26, 2021
Java Mail Oauth for gmail: require full mail scope for sending emails only Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#584 · 2 comments · 1 reaction · Opened Oct 19, 2021
Optional of update messageId and sentDate Open

jakartaee/mail-api#583 · 2 comments · 1 assignee · Opened Oct 6, 2021
New API to cancel a running long imap request Open

question

Difficulty 5/5 Over a week Newbie friendliness 30/100

jakartaee/mail-api#581 · 1 comment · Opened Oct 1, 2021
Caused by: com.sun.mail.iap.ConnectionException: * BYE Jakarta Mail Exception: java.lang.ArrayIndexOutOfBoundsException Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

jakartaee/mail-api#570 · Opened Jul 30, 2021
com.sun.mail.pop3.Protocol#readMultilineResponse Lost the point in the stream Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

jakartaee/mail-api#564 · Opened Jun 4, 2021
DNS MX record not used for mailserver lookup and failback Open

enhancement question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

jakartaee/mail-api#561 · 2 comments · Opened May 27, 2021
NO Client tried to access nonexistent namespace. (Mailbox name should probably be prefixed with: INBOX.) Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

jakartaee/mail-api#558 · Opened Apr 30, 2021

jakartaee/mail-api

Get new issues in your inbox