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Lightweight Open Source webmail written in PHP and JavaScript
C library for sending e-mail (with attachments) from C/C++
A serverless email server on AWS using S3 and SES
Reduce misspelled email addresses in your web apps
A mailing list manager with an excellent web interface
Business webmail modular application with mobile client
eml2pdf converter
send mass mail
ImpraStorage provided a private imap access to store large files
This is a php script that runs outside Drupal to send your Simplenews
Robust open source POP3 client and MIME parser written in C#
A email newsletter system