Which email programs are compatible with AuthSMTP?

Almost all current email programs are compatible with our AuthSMTP service - including (but not limited to):

Email ProgramVersion(s)
Microsoft Windows Mail App8, 10
Microsoft Outlook98, 2000, 2002, 2003, 2007, 2010, 2011, 2013, 2016, 2019
Microsoft Vista Mail6.x
Microsoft Outlook Express4.x, 5.x, 6.x
Microsoft Entourage2001 (see note below), X, 2004
Apple iPhone / iPod TouchLegacy iOS, 9.x (iOS 9), 10.x (iOS 10),11.x (iOS 11), 12.x (iOS 12), 13.x (iOS 13), 14.x (iOS 14), 15.x (iOS 15)
Apple iPadLegacy iOS, 9.x (iOS 9), 10.x (iOS 10),11.x (iOS 11), 12.x (iOS 12), 13.x (iOS 13), 14.x (iOS 14), 15.x (iOS 15)
Apple Mobile Men/a
Android (Mobile Device OS)2.x, 3.x, 4.x (Kitkat), 5.x (Lollipop)
CyruSoft Mulberry3.x, 4.x
Mozilla Thunderbird60+
Qualcomm Eudora5.x, 6.x, 7.x (No longer supported)
IncredimailXE, 2.0
Mac OS X Servern/a
Mac OS X MailOS X Mail (Including Monterey v12)
Microsoft Outlook Express for Mac5.0.6
Microsoft Outlook for Mac2011, 15.x
Microsoft Exchange 2000, 2003, 2007, 2010, 2013, 2016, 2019
Microsoft Windows Server2008 (Requires IIS 7)
Pegasus Mail3.x, 4.x
Opera Mail7.x, 8.x, 9.x, 10.x
Mozilla ThunderbirdAll versions
Pocket Outlook2003 (see note below), Windows Mobile 2005
University of Washington Pine4.6x
IBM Lotus Domino8.0 +
Palm Versa mail 2.x
Ameol2.56 +
nPOP (for Pocket PC / Windows)1.x
PHP Mailer5.x, 6.x
PHP PEAR::Mailn/a
Infacta Group Mail5.x, 6.x
Max Bulk Mailer6.x / 7.x / 8.x
Sendmail8.1 +
Postfix2.3 +
Exim4.x +

If your email program is not listed above or is a different / older version you 'may' still be able to use AuthSMTP - please contact us for more information.

Note 1: Entourage 2001 for Mac is compatible (needs to be version 9.0.4 or later).

Note 2:

  • Exchange 2007 has been tested and can be used with AuthSMTP but you need to be aware that you need to consider the issue regarding SSL/TLS in Exchange 2007 as it requires action in any case
  • Exchange 2003 has been tested and can be used with AuthSMTP
  • Exchange 2000 should also be compatible - however, we have not fully tested it in-house

Note 3: Pocket Outlook is compatible - it requires your AuthSMTP user name and password to be changed to the same as your POP3 username and password - see Can I change my user name and password? for further details.