In 1994, philatelic agent Mr Paolo de Rosa initiated an annual conference for the small postal administrations, which he represented, in order to discuss various philatelic matters of interest specifically in relation to the smaller postal administrations. Following Paolo de Rosa selling his philatelic agency to Afinsa, the postal administrations created their own annual SEPAC conference. The annual SEPAC conference of the postal administrations commenced in 1999 and was represented by delegates from the same postal administrations which had attended the De Rosa conference. Over the years, the value of the SEPAC conference has grown considerably and, to such an extent, that two conferences were held in 2005 to discuss a SEPAC joint postal administration marketing campaign. Two conferences also took place in 2006 to discuss the innovative SEPAC joint stamp issue and the introduction of the SEPAC official logo. SEPAC conferences:

• 1996: Gibraltar
• 1997: Faroe Islands
• 1998: Madrid
• 1999: Jersey
• 2000: Vienna
• 2001: Åland Islands
• 2003: Copenhagen
• 2004: Paris
• 2005: Gothenburg
• 2005: Sindelfingen
• 2006: Essen
• 2006: Brussels
• 2007: Essen
• 2007: Paris
• 2008: Vienna
• 2009: Rome
• 2010: Lisbon
• 2011: Malta
• 2012: Gibraltar
• 2013: Luxembourg
• 2014: Liechtenstein
• 2015: Guernsey
• 2016: Faroe Islands
• 2017: Isle of Man
• 2018: Aland
• 2019: Jersey
• 2020: Cancelled due to covid
• 2021: Online
• 2022: Luxembourg
• 2023: Monaco
• 2024: Liechtenstein